名词
中文翻译：螃蟹
同义词：
['crab', 'lobster例句：1. The sea crabs were crawling on the beach.（海蟹在沙滩上爬行。）2. They caught a lot of sea crabs for dinner.（他们捕了很多螃蟹作为晚餐。）3. Sea crabs are delicious', 'but they can be expensive.（螃蟹很好吃，但很贵。）']
例句：
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1. The sea crabs were crawling on the beach.
海蟹在沙滩上爬行。
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2. They caught a lot of sea crabs for dinner.
他们捕了很多螃蟹作为晚餐。
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3. Sea crabs are delicious, but they can be expensive.
螃蟹很好吃，但很贵。