常见例句雙語例句Supplier B has a $75,000 machine and he figures a cost of $8.45 for the machine and labor at $12 per hour.供應商B的生産部件的機器價值7.5萬，其使用機器成本爲美金8.45/小時，人力成本美金12/小時。www.szrc.net.cn 返回 cost per machine hour