Cavities
n. 腔, 洞( cavity的名词复数 ); （龋齿的）洞
✅ 同义词
🗣️ 情景例句
Betty, you had it, but you didn't say it.
Betty你知道答案， 但是你没有说出来。
The great and the little have need one of another.
伟大与渺小相得益彰。
Both men had just begun to swim towards the shore, when they noticed with dismay that the speedboat was moving in a circle.
两个人刚开始向岸边游去，就突然惊愕地发现快艇正在转着圈行驶，