Bipyridine
[医] α,α'-双吡啶
🗣️ 情景例句
I wonder if you would take a look at the old library
我不知道你是否可以看一看旧图书馆
Half a tale is enough for a wise man.
聪明人凡事只须听一半，就会明白究竟。
Well, let's count them. One, two, three, four, …
嗯，咱们来数数。1，2，3，4……