gasoline gravity

例句：

1. 1.The car needs gasoline to start.
   这辆车需要汽油才能启动。
2. 2. Gasoline is a common fuel for cars andtrucks.
   汽油是汽车和卡车的常见燃料。
3. 3. Gasoline prices have been increasingrecently.
   最近，汽油价格一直在上涨。