神经一紧一松，一天一晚过去了。
Nerve a tight one loose, one day a night past.
youdao
他的心一紧，好似被胸腔突然挤压了一般。
His heart squeezed, as if his chest had suddenly compressed it.
他下巴一紧，但还是努力保持着恰如其分的微笑。
His jaw tightened, but he kept his smile in place with some effort.
当看到“中国制造”几个字时不由得心里一紧。
I shrink as I read the words, Made in China.
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