Polyazin
[医] 多氮化合物
🗣️ 情景例句
You don't know Jack Wang? You're hiking.
你不认识杰克王？看玩笑吧？
On many farms you'll find cows and chickens.
在许多农场上你将发现奶牛和鸡。
No, it's open. It closes at six.
不，还没关。六点才关门。