经典句型:How could I use this coin laundry? 怎样用这台投币洗衣机?
　　A:How could I use this coin laundry?
　　甲:怎样用这台投币洗衣机?
　　B:Put three coins and then push this button.
　　乙:投3枚硬币，然后按这个按钮。
　　A:Do I have to put laundry powder in?
　　甲:需要放洗衣粉吗?
　　B:Of course.
　　乙:当然了。
　　经典句型:I'd like to know how to use this washing machine. 我想知道怎么用这台洗衣机。
　　A:Excuse me. Can you help me?
　　甲:打扰了。能帮个忙吗?
　　B:Certainly.
　　乙:当然。
　　A:I'd like to know how to use this washing machine.
　　甲:我想知道怎么用这台洗衣机。
　　句型讲解：
　　coin laundry是指投币式的自助洗衣店。laundry powder 是洗衣粉，也可以用 washing powder 或laundry detergent。