n.蕴涵的感情(或特质、意思)，寓意，弦外之音

原形：undertone复数：undertones

There was an undertone of sarcasm in his voice.
他的声音中带有一种讽刺的意味。
The movie had an undertone of sadness throughout.
这部电影自始至终都有一种悲伤的基调。
Her words had an undertone of bitterness.
她的话里带有一种苦涩的味道。
The negotiations had an undertone of hostility.
谈判中带有一种敌对的气氛。
His speech had an undertone of optimism.
他的演讲中带有一种乐观的基调。
The painting has an undertone of melancholy.
这幅画有一种忧郁的色调。
There was an undertone of desperation in her plea for help.
在她的求助中，可以听出一种绝望的情绪。
The novel has an undertone of social criticism.
这部小说有一种社会批判的倾向。
The music had an undertone of nostalgia.
这首音乐有一种怀旧的气息。
The conversation had an undertone of tension.
对话中带有一种紧张的气氛。