Precalculus
a. & n.学习微积分前必修的(课程)
🗣️ 情景例句
I must take issue with your over what you said at the meeting.
我要和你好好谈谈你在会上说的那些话。（take issue with someone: 对某人的观点提出异议。）
I meet the boy whose aunt is a housemaid.
我遇到那个男孩的姑妈是家庭主妇。
the graphic record shows three waves arriving one after the other at short intervals.
曲线纪录就能显示出前后相间的这3种地震波。