Precalculus
a. & n.学习微积分前必修的(课程)
🗣️ 情景例句
And then branched out into other sports products.
然后逐渐扩展出其他的运动产品。
I go out for lunch at about 12:30.
我在大约12:30去外面吃午餐。
When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield.
当飞机到达时，一些侦探等候在主楼内，另一些侦探则守候在停机坪上。