L-nmma
[医]L-单甲基精氨酸
🗣️ 情景例句
If we land a man on the moon, I think someone could surely invent a toaster that works properly.
如果我们能让人类登陆月球，我想一定会有人能发明在月球上还能正常运行的烤面包机。
I wonder how many girl friends he's got.
我不知道他有多少女朋友。
There was another unknown man.
还有一个不认识的人。