worsen

vt.& vi.

（使）变得更坏，（使）恶化；恶化，更坏；

过去式：worsened过去分词：worsened现在分词：worsening第三人称单数：worsens

1. Heavy storms worsened the fuel shortage.
   暴风雨使燃料的缺乏状况更加恶化。
2. The patient's condition worsened during the night.
   病人的情况在夜间恶化了。

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