Aclusion
咬合不全
🗣️ 情景例句
Are there any sports clubs on campus?
校园中有什么体育活动俱乐部吗？
Please try to be congenial and welcome the guests with a small.
请用笑脸愉快地迎接客人吧。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。