impulse
noun
Definitions of impulse noun
urge(衝動)
- C2Countable(可數名詞)Verb + to infinitive(動詞+帶to不定式)
A sudden, strong desire or urge to do something.
衝動；一時的念頭
I had a sudden impulse to stand up and sing during the meeting.
我在會議中突然有一股站起來唱歌的衝動。
She found it hard to control the impulse to open the gift.
她發現很難控制打開禮物的衝動。
He bought the car on a whim.
他心血來潮買了這輛車。
signal(信號)
- Countable(可數名詞)
A brief electrical, radio, or light signal that transmits information or instructions within a system.
（電學）脈衝；衝量
The brain sends messages through nerve impulses.
大腦通過神經脈衝傳遞訊息。
Computers use electrical impulses to process data.
電腦使用電脈衝來處理數據。
Fiber optics use light impulses to transmit information.
光纖使用光脈衝來傳輸信息。
cause(原因)
- Countable(可數名詞)Usually singular(通常單數)formal(正式)
The driving force or underlying reason behind something.
衝動；動機
Curiosity is the impulse behind exploration.
好奇心是探索的驅動力。
Profit is a commercial impulse for business development.
利潤是商業發展的動力。
Her creative impulse stems from a pursuit of beauty.
她的創作動力來自對美的追求。
Phrases of impulse noun
- on (an) impulse
Acting suddenly without planning; driven by a sudden urge.
一時衝動
• He bought a ticket to Paris on impulse.
他一時衝動買了一張去巴黎的票。