动词短语
中文翻译：对
同义词：
['be quiet about', 'remain silent on例句：1. The company decided to be silent on the issue of layoffs.（公司决定对裁员问题保持沉默。）']
例句：
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1. The company decided to be silent on the issue of layoffs.
公司决定对裁员问题保持沉默。
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2. She was asked to be silent on the matter until further notice.
她被要求在进一步通知之前对此事保持沉默。
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3. The teacher instructed the students to be silent on their desks during class.
老师指示学生们在上课时坐在座位上保持沉默。