Parodontal
a. 牙齿周围的, 齿根膜的
🗣️ 情景例句
Oh, we have a lot to be thankful for.
啊，我们有很多需要感谢的事情。
I want to be a journalist after graduation.
毕业后我想当记者。
Large groups of Native Americans were forced to move away form their old hunting grounds.
成批成批的美洲土著人被迫从他们原来的狩猎场迁走。