Lithocenosis
[医] 碎石清除术
🗣️ 情景例句
that will bring parents and teachers together once a week
让家长们及教师每星期一次
I asked him to check it for me, but he wouldn't.
我请他帮我检查，但是他不肯。
During all these tests Vera was blindfold;
在所有这些实验中，维拉的双眼都是蒙着的。