(49)
    A: I want you to look at this material .
    B: Is this from our last shipment ?
    A: Yes ,it is .
    B: I can see why you are having some problems with it .
    A:我要你看看這材料！
    B:這是上次叫的貨嗎？
    A:是啊。
    B:我明白為什么你用起來會有問題了。
    (50)
    A: I would suggest that you use this material instead of that .
    B: But that costs more .
    A: But you will get less waste from this .
    B: We'll try it once .
    A:我建議你改用這種替代那種。
    B:可是那樣成本較高。
    A:但可以減少浪費。
    B:那么就試一次看看吧。