动词中文翻译
中文翻译：信号
同义词：
['signal', 'indicate', 'notify', 'announce例句：1. The policeman signalled the driver to stop.（警察向司机示意停车。）2. The scientist indicated that the new drug would be effective in treating cancer.（科学家表示新药对治疗癌症有效。）']
例句：
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1. The policeman signalled the driver to stop.
警察向司机示意停车。
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2. The scientist indicated that the new drug would be effective in treating cancer.
科学家表示新药对治疗癌症有效。
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3.The teacher announced the start of the exam.
老师宣布考试开始。