Precalculus
a. & n.学习微积分前必修的(课程)
🗣️ 情景例句
A diet cola, please.
一份健怡可乐。
Never fry a fish till it's caught.
捉到鱼，才煎鱼。
If we remain inveterate smokers, it is only because we have so often experienced the frustration that results from failure.
如果我们烟瘾大，戒不掉，那是因为屡戒屡败，失去信心。