英语词汇hard pad简单造句、意思、用法及例句-英语例句辞典

单词	hard pad
例句	原声例句英国学生科学读本 There are no teeth in its upper jaw opposite these, but there is a hard pad instead. 上面的上腭部分没有牙齿，只有一个坚硬的齿垫。
随便看	labor and management labor and material laboratories laboratory laboratory analysis laboratory and greenhouse laboratory animal Laboratory Animals laboratory assistant Laboratory Assistants laboratory building laboratory cement laboratory coat laboratory coats laboratory course laboratory culture laboratory data laboratory design laboratory effects laboratory energy laboratory environment laboratory equipment laboratory experiment laboratory finding laboratory findings

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