straight leaded gasoline

例句：

1. 1. Thecar's engine sputtered andcoughed as it ran on straight leaded gasoline.
   这辆车在用直馏汽油运行时发动机发出嘶嘶声并咳嗽。
2. 2. The mechanic replaced the sparkplug with a new one, hoping thatthe car would run better on straight leaded gasoline.
   机械师用一个新的火花塞替换了原来的，希望这辆汽车能更好地使用直馏汽油。
3. 3. Theold car was running poorlyon straight leaded gasoline, so the owner decided toget a new one.
   旧车在直馏汽油上运行得不好，所以车主决定换一辆新车。