Parametrix
拟基本解奇异函数
🗣️ 情景例句
This is a good deal: buy 1, get 1 free.
这可是个好买卖：买一送一。
Happy is he that is happy in childhood.
童年时代快乐的人是幸福的。
It was very different from modern car races but no less exciting.
它虽然与现代汽车比赛大不相同，但激动人心的程度并不亚于现代化汽车大赛。