1
an undercurrent of [emotion/quality] in [something]
常与表示情绪或氛围的名词连用，指没有直接说出的潜在感受。
There was an undercurrent of sadness in her voice.
她的声音里透着一股悲伤的暗流。
暗流
先理解核心含义，再看它在真实句子里的用法。
暗流
a subdued emotional quality or implicit meaning underlying an utterance
There was an undercurrent of sadness in her voice.
她的声音里透着一股悲伤的暗流。
此处为比喻义，指话语中隐含的情绪或意味。
水面下的水流,方向常与表层水流不同。
A current of water which flows under the surface, and often in a different direction from surface currents.
言语中潜在的情感特质；隐含意义
a subdued emotional quality underlying an utterance; implicit meaning
隐藏而非表露的情感或意见倾向。
A tendency of feeling or opinion that is concealed rather than exposed.
流体表面下的水流
a current below the surface of a fluid
There was an undercurrent of tension in the room during the meeting.
会议期间，房间里弥漫着一股紧张的暗流。
Her calm words hid an undercurrent of anger.
她平静的话语下隐藏着一股愤怒的暗流。
Beneath their friendly conversation, I sensed an undercurrent of distrust.
在他们友好的交谈背后，我感觉到一股不信任的暗流。
常与表示情绪或氛围的名词连用，指没有直接说出的潜在感受。
There was an undercurrent of sadness in her voice.
她的声音里透着一股悲伤的暗流。
可用形容词说明潜在倾向或性质，如 political、bitter 等。
His speech had a political undercurrent.
他的演讲带有政治潜台词。
常用 sense、detect、feel 等感知动词搭配，表示察觉到未明言的情绪。
I sensed a tense undercurrent in the meeting.
我在会议中感觉到一种紧张的暗流。
Not this
There is an undercurrent tension between them.
Use this
There is an undercurrent of tension between them.
undercurrent 是名词，不能像形容词那样直接修饰另一个名词。表示“一股隐藏的……情绪或性质”时用 an undercurrent of + 名词，因此要在 tension 前加 of。
Not this
There is undercurrent of opposition to the plan.
Use this
There is an undercurrent of opposition to the plan.
undercurrent 是可数名词单数，前面必须有冠词 an。汉语没有冠词，学习者容易漏掉，但英语中不可省略。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一股暗含的怒气
Beneath his calm voice there was an undercurrent of anger.
在他平静的声音之下暗含着一丝怒气。
紧张情绪的暗流
The meeting was polite, but an undercurrent of tension ran through the room.
会议气氛客气，但房间里弥漫着一种紧张情绪的暗流。
政治暗流
The movie explores the political undercurrents of the era.
这部电影探讨了那个时代的政治暗流。
察觉到暗流；隐约感到某种情绪
I sensed an undercurrent of unease among the guests.
我隐约感到客人们中间有一股不安的暗流。
不安的暗流
There was an undercurrent of unease beneath the polite conversation.
礼貌的交谈之下涌动着一股不安的暗流。
怨恨的潜流
Her smile hid an undercurrent of resentment.
她的微笑下隐藏着一丝怨恨的潜流。
兴奋的暗流
The quiet classroom had an undercurrent of excitement before the trip.
出发前，安静的教室里弥漫着一种兴奋的暗流。
Use undercurrent naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：under（下）+current（水流），水面下的暗流，喻指表面下隐藏的情绪。
语域：neutral 常见场景：news reports、literary analysis、everyday conversation about feelings 该词指隐藏在表面之下的情绪或隐含意义，属于中性词汇，通常多用于书面或较正式的表达（如新闻、文学评论），在口语中偶尔出现，显得比较文雅。
发音说明：undercurrent 的结尾 /kɝənt/ 与 current、concurrent、recurrent 押韵。注意 currant 是 current 的同音词（/ˈkɝənt/），但拼写和意思不同。开头 /ˈʌndɚ/ 与 under、thunder 押韵，注意 thunder 拼写中含 under，但发音多了一个 /θ/。小心形近词如 undergraduate /ˌʌndɚˈɡrædʒuət/ 和 understand /ˌʌndɚˈstænd/，它们以 under- 开头，但整个词的读音与 undercurrent 并不押韵。
Dictionary facts from ECDICT, WIKTIONARY.