双壳类双瓣壳如豌豆夹两瓣的有双瓣的亦作 bivalvate
Bivalves are double-petaled shells, such as peas with two petals. Those with two petals are also called bivalvates
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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