动词短语
中文翻译：降低
同义词：
['decrease', 'lower', 'sour']
例句：
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1. The temperature has dropped significantly since the rain.
自下雨以来，温度已经显著下降。
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2. The acidity of the wine is noticeably higher than that of the previous vintage.
这瓶酒的酸性明显比上一个年份的要高。
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3. The food was so sour that it made her stomach hurt.
食物太酸了，让她胃痛。