例句與造句

1. A record 682 stations closed between April and September last year but refiners are so keen to maintain market share, they're reluctant to switch off the pumps.
2. In addition, the order Thursday required older 747s without tail tanks to fly with more fuel in the center tank, which is routinely pumped dry in flight, and to switch off the pumps with the problem while thousands of gallons of fuel remain inside.
3. It's difficult to find switch off the pump in a sentence. 用switch off the pump造句挺難的