Retrosynthesis
[化] 逆合成
🗣️ 情景例句
You know, man's best friend is his dog.
你知道的，类最好的朋友就是狗。
I have to go now.
我必须走了
At the end of the first lap, Li Lei quickly passed the stick on to Jim.
在第一圈结束时，李磊迅速地将棒传给吉姆。