B
生物医药大词典
by MedSci
菜单
词典
分类
百科
诗词
背单词
英文名
DeepEvidence ↗
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例句 /
A riverboat with a keel but without sails, used for carrying freight.
A riverboat with a keel but without sails, used for carrying freight.
运货船一种运货的河流用船,有龙骨但无帆