Valyl
缬氨酰, 异戊氨酰
🗣️ 情景例句
I'm sorry, I can't help you. I'm just a tourist also.
很抱歉，我帮不了你，我也只是个游客。
The shortest answer is doing.
最简短的回答就是做。
It's running after a cat.
在追一只猫。