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 ↗
确认登录状态…
例句 /
An assistant demonstrated the washing machine (to customers).
An assistant demonstrated the washing machine (to customers).
店员（向顾客）示范如何使用洗衣机.