Precalculus
a. & n.学习微积分前必修的(课程)
🗣️ 情景例句
May I speak with Mr. Chen, please?
可以请陈先生听电话吗？
Do you live on Queen St?
你在皇后大道居住吗？
Late that morning, when I was doing the housework, My husband phoned me from the office.
那天下午的晚些时候，当我正做家务时，我丈夫从办公室打来电话。