例句與造句

1. The addition of two steam - driven pumps that could transfer 3 , 000 , 000 gallons of water per day ; and
   增設(shè)兩套每天可抽調(diào)300萬加侖食水、由蒸氣推動(dòng)的抽水機(jī)；
2. It's difficult to find steam-driven pump in a sentence. 用steam-driven pump造句挺難的