Quadrine
[化] α-氨基丁酸; α-氨基正丁酸
🗣️ 情景例句
Not until recently.
最近才考虑到。
Come on!
得了吧！
I often go-swimming, sometimes in a lake near my home, and sometimes in the river.
我经常去游泳，有时在我家附近的湖里，有时在河里。