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 /
A device placed in the mouth to keep it open, as in dentistry.
A device placed in the mouth to keep it open, as in dentistry.
张口器如牙科中放在嘴里使嘴张开的装置