1. It occupies the central cavity of bone. 它位于骨骼中央的骨髓腔里。
2. The heart without knowledge is a cavity. 没心知识的心是一个空洞。
3. The captive captivated by the apt adaptation rapped the cavity with rapture. 被灵巧的改编迷住了的被捕者著迷地敲打空腔。
英英解释
n.
1. a sizeable hole (usually in the ground)
2. space that is surrounded by something
3. soft decayed area in a tooth; progressive decay can lead to the death of a tooth
4. (anatomy) a natural hollow or sinus within the body