Dihydroxy-
二羟基
🗣️ 情景例句
Well, here we are.
好了 ，终于到啦。
One cannot make a silk purse out of a sow's ear.
朽木不可雕。
Read Jimmy's card to me,please, penny.
请把吉米的明信片念给我听听，彭妮。