名词
中文翻译：丢弃的字母
同义词：
['dropped letter', 'discarded letter例句：1. The company decided to drop the old model and replace it with a new one.（公司决定放弃旧型号，换成新的。）']
例句：
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1. The company decided to drop the old model and replace it with a new one.
公司决定放弃旧型号，换成新的。
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2. The teacher dropped a few important points during the lecture.
老师在讲座中漏掉了几个重要点。
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3. The engineer dropped a piece of paper in his pocket.
工程师口袋里掉下了一张纸。