These expressions are often used interchangeably, but they do have different meanings.
这些表达方式经常相互替代使用，但它们的含义却有所不同。
柯林斯例句
From Cairo came expressions of regret at the attack.
开罗对此次攻击表示遗憾。
柯林斯例句
She spoke in a quiet voice but used remarkably coarse expressions.
她说话声音很小，但是用了些特别粗俗的字眼儿。
柯林斯例句
His expressions varied from poker-faced to blank.
他的表情在一本正经和茫然惶惑之间变幻不定。
柯林斯例句
ritualized expressions of grief
以例行的方式表达悲伤
《牛津高阶英汉双解词典》
The fashionable remarks of today often become the commonplace expressions of tomorrow.
今天的时髦话往往变成明天的陈词滥调.
《简明英汉词典》
In our reading we should always be alert for idiomatic expressions.
我们在阅读过程中应经常注意惯用法.
《简明英汉词典》
All their expressions were not true.
他们所有的表情都不是真的.
《简明英汉词典》
In this dictionary we often gloss difficult expressions with an explanation in brackets.
在这本词典里我们常常用括号内的解释来注解难懂的词.
《简明英汉词典》
From the expressions on their faces, I realized the gravity of the situation.
从他们的脸部表情我晓悟到事情的严重性.
《现代汉英综合大词典》
We can use our eyes and facial expressions to communicate virtually every subtle nuance of emotion there is.
我们用眼睛和面部表情几乎就能传达出情感上的每一丝微妙变化。
柯林斯例句
Green grass, flowers of red and white everywhere expressions of gentle life.
到处都是绿色的草和红白色的花.到处都显露着生机.
汉英文学 - 家（1-26） - 家（1-26）
Laughter is one of the most infectious expressions of emotion.
笑是最具感染力的情感表达方式之一。
辞典例句
In fact, our moral evaluations are merely expressions of our desires.
事实上, 我们的道德评价只是我们欲望的表达形式.
哲学部分
Since superstitions are " traditional expressions, " they are folklore.
既然迷信是 “ 传统的表述 ”,它就属于民俗.
英汉非文学 - 民俗
I'm interested in how these things are expressions of that person, their ideas, and their interactions with the world.
2019年6月四级真题（第三套）阅读 Section BIn the video clips, the babies made various facial expressions in response to real life events including playful interactions and painful ones.
2019年12月六级真题（第一套）听力 Section CThis conversational robot companion has cameras in its eyes, which allow it to track patients and use appropriate facial expressions and body language in its interactions.
2018年12月六级真题（第二套）阅读 Section CYou have a little time to do research, prepare technical expressions and so on.
2016年6月六级真题（第一套）听力 Section AParents don't have to be exquisitely present at all times, but there needs to be a balance and parents need to be responsive and sensitive to a child's verbal or nonverbal expressions of an emotional need.
2017年考研真题（英语二）阅读理解 Section ⅡThose forced to exercise their smiling muscles reacted more enthusiastically to funny cartons than did those whose mouths were contracted in a frown, suggesting that expressions may influence emotions rather than just the other way around.
2011年考研真题（英语一）完形填空 Section Ⅰ