周六和周日我们不上课 用英语怎麽说

We don't have class on Saturday and Sunday.

My mother bought a whitesweater for me yesterday

We don't have class on Saturday and Sunday.

study
bought to

have class

bought for

have class

bought， for

we don't have lessons on saturday and sunday
（have lessons上课 固定词组搭配）

my mother bought a white sweater for me yesterday
(yesterday是过去时的标志，所以buy 变bought. buy something for somebody固定词组搭配）