动词短语
中文翻译：跌落
同义词：
['drop', 'shorten', 'diminish']
例句：
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1.The drop in temperature caused the leaves to droop.
温度的下降导致树叶下垂。
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2. The company's profits have dropped significantly since the recession.
自经济衰退以来，该公司的利润大幅下降。
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3. The project will be completed in a year, but we need to drop some short-term goals.
该项目将在一年内完成，但我们需要减少一些短期目标。