H substance
[医] H物质, 释放物质
🧩 词语组成解析
🗣️ 情景例句
That's irrelevant.
那不相干。
By the way,who are you waiting for?
顺便说,你正在等谁？
The eraser goes from one student to another first one way, then another.
橡皮擦从一个学生传给另一个学生－先从这个方向传过去，然后返回来。