Infinitesimality
无穷小
🗣️ 情景例句
Typing is easy once you get the hang of it.
一旦你掌握诀窍，打字就很简单。
Is the plain along the river good for farming?
河畔的平原易于发展农业吗？
Sorry, I can't. I have to tidy my room.
对不起，我不能去。我得收拾房间。