Precalculus
a. & n.学习微积分前必修的(课程)
🗣️ 情景例句
Lots of people want their taxes
许多人希望他们缴的税金
I should have studied last night, but I was too tired.
我昨晚应该学习，但是我太累了。
Oh, thanks very much. I'd love to. What time is it going to start?
噢，非常感谢。我当然想去。聚会什么时候开始？