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 hole or worn spot made by abrasion or erosion.
A hole or worn spot made by abrasion or erosion.
侵蚀处由于侵蚀或磨擦形成的洞或破处