A cavity is a space or hole in something such as a solid object or a person's body. 洞; 腔
noun [专属名词] 洞，腔；(牙齿的) 龋洞
What is most noticeable is this cavity, this fluid-filled cavity that begins to develop. 最明显的是这个腔，这个充满液体的腔开始发育。
来自cave(n. 洞穴)
- 网友用 “Cavity” 造句精选
- ...a cavity in the roof. …屋顶的一个洞。