Stibono-
[化] 羧基
🗣️ 情景例句
Good.
好极了。
He skinned his knee.
他擦破了膝盖的皮。
We had to queue for hours to get in and there must have been several hundred people present just before the show began.
我们不得不排了好几个小时才进得场去。在演出开始前场内肯定已有好几百人了。