英文字根aud
當我們聽見「audio」這個單字時，或許會聯想到耳機、聲音、錄音等等，這些都與「聽覺」有關。其實這些字的共通來源，就是字根「aud」，源自拉丁文的「audire」，意思是「to hear（聽）」。這個字根是所有與「聽」、「聲音」、「耳朵」相關的英文單字的基礎之一。不管是演講、觀眾、審訊還是音頻，只要你看到這個字根，都可以從「聽」的角度去理解這個單字的意義。
以下我整理出30個與「aud」字根相關的英文單字，依照台灣使用習慣附上中文詞義說明，每個單字也搭配三個實用例句與翻譯，方便你在學習時快速吸收，活用在生活與工作中。
audience
觀眾；聽眾
The audience laughed at every joke the comedian told.
觀眾對那位喜劇演員講的每個笑話都哈哈大笑。
A live audience adds a unique energy to the performance.
現場觀眾替表演增添了獨特的活力。
She gave a speech in front of a large audience.
她在一大群觀眾面前發表了演說。
audio
音訊；聲音的
The audio on this video is crystal clear.
這段影片的聲音非常清晰。
He used professional audio equipment for the recording.
他使用專業的音訊設備進行錄音。
Can you turn up the audio a bit?
你可以把音量調高一點嗎？
audible
聽得見的
Her whisper was barely audible in the noisy room.
在嘈雜的房間裡她的耳語幾乎聽不見。
The signal was only audible to trained ears.
這個訊號只有受過訓練的人才聽得出來。
There was an audible sigh of relief in the room.
房間裡傳出一聲可以聽見的鬆口氣聲音。
audit
查帳；審核
They conducted an internal audit last month.
他們上個月進行了內部稽核。
The government ordered a full audit of the company.
政府下令對該公司進行全面查帳。
She signed up to audit a college class for free.
她報名免費旁聽一門大學課程。
auditorium
大禮堂；觀眾席
We met at the school auditorium for the performance.
我們在學校大禮堂集合看表演。
The auditorium was packed with students.
禮堂擠滿了學生。
He stood on stage and looked out over the auditorium.
他站在舞台上，望向整個觀眾席。
auditory
聽覺的
Music therapy can improve auditory processing.
音樂治療可以改善聽覺處理能力。
The brain’s auditory cortex helps us understand sounds.
大腦的聽覺皮質幫助我們理解聲音。
She had an auditory learning style.
她是偏好聽覺學習的人。
inaudible
聽不見的
The conversation was inaudible from across the room.
從房間另一端完全聽不見他們的對話。
He whispered something inaudible.
他低聲說了些聽不見的話。
The recording was so faint it was almost inaudible.
錄音太微弱，幾乎聽不出來。
audition
試鏡；試演
She auditioned for a role in the musical.
她參加了音樂劇的試鏡。
He was nervous before his audition.
試鏡前他非常緊張。
They held auditions for the school play.
他們為學校話劇舉辦了試鏡。
audiology
聽力學
She studied audiology in graduate school.
她在研究所主修聽力學。
Audiology clinics test hearing and provide aids.
聽力學診所會進行聽力測試並提供助聽器。
Audiology is essential in diagnosing hearing loss.
聽力學對診斷聽力損失很重要。
audiologist
聽力學專家
The audiologist helped him choose a hearing aid.
聽力師幫助他挑選助聽器。
She made an appointment with the audiologist.
她預約了聽力學專家的門診。
An audiologist tested the child’s hearing.
聽力專家檢查了那個孩子的聽力。
audiobook
有聲書
I listened to an audiobook on my commute.
我通勤時聽了一本有聲書。
Audiobooks are great for multitasking.
有聲書適合一邊做其他事一邊聽。
He prefers audiobooks to printed books.
他喜歡聽有聲書勝過紙本書。
audiophile
音響發燒友
An audiophile invests in high-end audio gear.
音響迷會投資高級音響設備。
The shop caters to audiophiles.
這家店專門服務音響迷。
He’s a true audiophile with an amazing sound system.
他是真正的音響迷，擁有超強音響系統。
auditory nerve
聽神經
The auditory nerve carries signals to the brain.
聽神經負責把訊號傳到大腦。
Damage to the auditory nerve causes hearing loss.
聽神經損傷會導致聽力喪失。
They studied the function of the auditory nerve.
他們研究了聽神經的功能。
audiometer
聽力計
An audiometer measures your hearing ability.
聽力計用來測量你的聽力。
The audiologist used an audiometer during the test.
檢查時聽力師使用了聽力計。
An audiometer is essential in a hearing exam.
聽力檢查少不了聽力計這項工具。
audiotape
錄音帶
She found an old audiotape from the 90s.
她找到一卷90年代的錄音帶。
The interview was saved on audiotape.
訪談被錄在錄音帶上。
He transferred the audiotape to digital format.
他把錄音帶轉成數位檔案。
audile
聽覺型學習者
He’s an audile who remembers things by hearing them.
他是個透過聽覺記憶的學習者。
Audiles do better with lectures than with reading.
聽覺型學習者比閱讀更適合聽課。
Teachers use different methods to help audiles.
老師會用不同方法來幫助聽覺型學生。
audiometry
聽力測驗
Audiometry helps detect early hearing issues.
聽力測驗有助於早期發現聽力問題。
She had to undergo audiometry after the accident.
事故後她必須接受聽力測試。
The clinic provides free audiometry screenings.
這家診所提供免費聽力測驗。
audiovisual
視聽的
They created an audiovisual presentation.
他們製作了一個視聽簡報。
The museum uses audiovisual guides.
博物館使用視聽導覽。
Audiovisual tools help students learn better.
視聽工具可以幫助學生更有效學習。
audiocassette
錄音卡帶
I found a box of old audiocassettes.
我找到一盒舊錄音卡帶。
He recorded his songs on an audiocassette.
他把自己的歌曲錄在錄音卡帶上。
Audiocassettes are now collectibles.
錄音卡帶現在變成收藏品了。
audibility
可聽性
The audibility of the announcement was poor.
那個廣播的可聽性很差。
They tested the audibility of the alarm.
他們測試警報器的可聽程度。
Good audibility is key in public speaking.
公開演說中良好的可聽度很重要。
audiogram
聽力圖
The audiogram showed mild hearing loss.
聽力圖顯示有輕微的聽力損失。
An audiogram is used to track hearing changes.
聽力圖用來追蹤聽力變化。
Doctors read the audiogram to adjust hearing aids.
醫生根據聽力圖調整助聽器。
audiovestibular
聽覺與平衡相關的
She visited the audiovestibular clinic.
她去看了聽覺與平衡診所。
Audiovestibular disorders can cause dizziness.
聽覺與平衡問題可能引起暈眩。
The test included audiovestibular assessments.
檢查包括了聽覺和平衡測驗。
audiophile-grade
音響級的（高品質）
He only buys audiophile-grade equipment.
他只買音響等級的設備。
Audiophile-grade cables can improve sound clarity.
高品質音響線可以改善聲音清晰度。
That headphone is audiophile-grade and expensive.
那副耳機是高階音響等級，也非常貴。
auditively
用聽覺地
She processed information auditively.
她用聽覺方式來處理資訊。
The message was delivered auditively and visually.
訊息透過聽覺與視覺傳達。
Some students learn best auditively.
有些學生最適合用聽覺方式學習。
audiorecorder
錄音器
Use an audiorecorder to take notes during interviews.
訪談時可以用錄音器記錄重點。
The audiorecorder has long battery life.
這款錄音器的電池續航力很長。
He uploaded the file from his audiorecorder.
他把錄音器裡的檔案上傳了。
audiogram chart
聽力圖表
The audiologist reviewed the audiogram chart.
聽力師檢視了聽力圖表。
Audiogram charts are helpful in diagnosing issues.
聽力圖表對診斷問題很有幫助。
Your audiogram chart shows progress.
你的聽力圖表顯示有進步。
audiotrack
聲音軌道
The movie’s audiotrack was remastered.
這部電影的聲音軌道被重新製作。
I muted the video’s audiotrack.
我把影片的聲音軌道靜音了。
He edited the audiotrack separately.
他分開編輯了聲音軌道。
audiotour
語音導覽
We took an audiotour of the museum.
我們用語音導覽逛博物館。
The audiotour explained the exhibits clearly.
語音導覽解釋展品很清楚。
She downloaded the audiotour app in advance.
她事先下載了語音導覽的應用程式。
auditing
查帳；審核行為
He works in the auditing department.
他在稽核部門工作。
The company is currently auditing its finances.
公司正在進行財務稽核。
Auditing ensures transparency and accuracy.
查帳能確保透明與準確。
這三十個單字是與「aud」這個「聽」相關的字根發展出來的代表詞彙，希望你能在閱讀這些例句時，慢慢養成直覺反應——看到「aud」就想到「聲音」、「聽覺」、「查帳」、「聽見」這些延伸意義，自然也更容易背得牢、記得久。