动词
中文翻译：凝结
同义词：
['congeal', 'freeze', 'solidify']
例句：
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1. The ice crystals began to form on the surface of the lake.
湖面上开始形成冰晶。
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2. The snow has begun to melt, and the water is starting to flow.
雪开始融化，水流开始流动。
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3. The frozen river has been unfrozen, and the water is flowing again.
冰冻的河流已经解冻，水流又开始流动。