Nilmanifold
[数]幂零流形
🗣️ 情景例句
Why don't we take a walk down to the river?
我们何不一路散步到河边去呢？
I'm afraid you're too critical about your food.
我怕你对食物太挑剔了。
Where's your homework, Jim?
吉姆，你的家庭作业在哪儿？