alligator指的是短吻鱷,主要生活在美國東南部以及中國,嘴巴比crocodile寬一些,短一些。參見劍橋字典的解釋:
a large reptile with a hard skin that lives in and near rivers and lakes in hot, wet parts of the world. It is like an alligator, but it usually has a longer and narrower nose
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