Phaeophyll
叶褐素
🗣️ 情景例句
You're welcome.
不客气。
I ask him to do the housework now.
我要求他现在做家务。
Can't we visit the High Dam? I've read a lot about it; it's the biggest in the world.
我们不能去参观高坝吗？我已读了很多关于高坝的情况；它是世界上最大的。