Solvmanifold
可解流形
🗣️ 情景例句
Then why don't we fix a date for a game one of these days?
那么我们为什么不在这几天中订个日子来打一场比赛呢？
He that never climbed never fell.
不向上爬的也不会下跌。
I wish I had followed your advice.
我真希望我采纳了你的建议。