1
experience sleepiness
experience 后可直接接 sleepiness，表示“感到/体验到困倦”。
Many new parents experience sleepiness during the day.
许多新父母白天都会感到困倦。
困倦；睡意；瞌睡
先理解核心含义，再看它在真实句子里的用法。
困倦；睡意；瞌睡
the state or quality of being sleepy; drowsiness
Many new parents experience sleepiness during the day.
许多新父母白天都会感到困倦。
困倦的特性
The property of being sleepy.
非常困倦的状态
a very sleepy state
After the long meeting, I couldn't shake off my sleepiness.
开完长会后，我无法摆脱困倦。
AI contextual example
The warm room and soft music increased my sleepiness.
温暖的房间和轻柔的音乐加重了我的睡意。
AI contextual example
A short walk in the fresh air can help reduce sleepiness.
在新鲜空气里散散步有助于减轻困倦。
AI contextual example
sleepiness causes many driving accidents
困倦导致许多驾驶事故。
WordNet
experience 后可直接接 sleepiness，表示“感到/体验到困倦”。
Many new parents experience sleepiness during the day.
许多新父母白天都会感到困倦。
在描述药物或疾病的副作用时，cause sleepiness in sb 是常用搭配。
This drug may cause sleepiness in some patients.
这种药可能会让一些患者感到困倦。
suffer from 强调整体上受困倦影响，常与长期或反复出现的情况连用。
Shift workers often suffer from sleepiness at work.
轮班工人工作时常常为困倦所苦。
Not this
I feel sleepiness after lunch.
Use this
I feel sleepy after lunch.
feel 在此是系动词，后面应接形容词作表语；sleepiness 是名词，不能直接跟在 feel 后。表达“感到困倦”要用 feel sleepy。
Not this
I have sleepiness during the meeting.
Use this
I am sleepy during the meeting.
汉语“我有困意”直译成 have sleepiness 不符合英语搭配；英语用 be + 形容词 sleepy 表示困倦状态，而不是 have + 名词。
Choose the next layer that will help you use sleepiness with more confidence.
Includes Idioms & Cultural references
Discover idioms, slang, and famous pop culture quotes.
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
过度嗜睡
Excessive sleepiness during the day may indicate a health problem.
白天过度嗜睡可能表明存在健康问题。
白天嗜睡
Daytime sleepiness often results from poor sleep quality.
白天嗜睡常常是睡眠质量差造成的。
引起困倦
This medicine may cause sleepiness, so do not drive.
这种药可能引起困倦，所以不要开车。
减少困倦
Getting enough rest can reduce sleepiness.
充足的休息可以减少困倦。
突然的睡意
A sudden sleepiness came over me after lunch.
午饭后我突然感到一阵睡意。
发长 /iː/ 音 (如 see, free)
Use sleepiness naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
拆成 sleep + i + ness：睡意（sleep）像网（-ness）一样罩住你，眼皮直打架，就是困倦（sleepiness）。
语域：neutral 常见场景：日常交谈、健康或医学描述 sleepiness 是中性名词，日常口语和书面语中都较常见；在描述健康状态时也自然适用，通常没有特别的正式或非正式色彩。
通常作不可数名词；词典亦收录复数形式 sleepinesses。
Dictionary facts from ECDICT, WIKTIONARY.