动词短语
中文翻译：保持沉默
同义词：
['shutup', "hold one's peace", 'keep silent']
例句：
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1. Hekept his mouth shut and didn'tsay anything.
他保持沉默，什么也没说。
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2. The teacher toldus to keep our mouthsshut during the test.
老师让我们在考试时保持沉默。
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3. She kept her mouth shutwhen she saw the angry look on herboss's face.
她看到老板生气的表情时，保持了沉默。