Desmodontium
牙週纤维
🗣️ 情景例句
We have brought this transaction to a successful conclusion.
我们已成功地达成了协议。
Feel free to bring your brother if he would like to come.
如果喜欢的话，你不妨带令兄一起来。
We are going to have the final examination next week.
我们下周举行期末考试。