因为来回运输不方便，且运费昂贵。我们可以给予的承诺是如果你收到货时，发

因为来回运输不方便，且运费昂贵。我们可以给予的承诺是如果你收到货时，发现哪个零件坏了，我们可以给相应的赔偿

結果 (英文) 1:

Because the transport is not convenient, and expensive. We can promise is that if you receive goods, find out which part is broken, we can give appropriate compensation

結果 (英文) 2:

Because the round-trip transportation is inconvenient and expensive freight. Commitment we can give is that if you receive the goods, find out which part is broken, we can give the appropriate compensation

結果 (英文) 3:

Because back and forth transport inconvenient, and expensive freight. The promise we can give is that if you receive the goods and find out which part is broken, we can give the corresponding compensation.