b but that costs more b
但是那样花费更多
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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.
我建议你改用这种替代那种。B：可是那样成本较高。A：但可以减少浪费。B：那么就试一次看看吧。
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