Precalculus
a. & n.学习微积分前必修的(课程)
🗣️ 情景例句
OK, let's take a look.
好了， 让我们来看一看。
Milk,butter,and cheese are shipped here from the dairy farms.
这里的牛奶，黄油，和奶酪都从奶场装运来。
It's seven o five.
七点零五了。