Pentahydroxybenzophenone
五羟基二苯(甲)酮
🗣️ 情景例句
Where does it go?
放在哪儿？
Affairs that are done by due degrees are soon ended.
事情要安步就班地做，就会很快地做完。
None of us is afraid of difficulties.
我们当中没有一个人害怕困难。