名词
中文翻译：准备行动
同义词：
['preparatory step', 'preliminary action']
例句：
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1.Before the meeting, we should have a preparatory action to prepare for the discussion.
会议前，我们应该做一些准备工作来讨论。
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2. The teacher gave us a preparatory action before starting the lesson.
老师在开始上课前给我们做了一些准备动作。
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3. During the exam, students need to take a preparatory action to avoid distractions.
考试期间，学生需要采取一些预防措施以避免分心。