1. This morning when I pumped gas at a gas station, the price was $1.53 a gallon.2. My motorcycle is low on fuel. I have to go to a gas station.3. A pit stop is a stop at a pit for refueling or service during an automobile race.4. I refuel my car once every month.
 pump gas refuel go to a gas stationpump gas = refuel = 給需要汽油的車子加油，也可用在船或飛機很多時候你可以說 go to a gas station 來暗示你要去加油站加油，不需要加油添醋的說 go to a gas station to pump gas
這是一個連環問題: 燃燒石油導致二氧化碳增加，二氧化碳增加導致溫室效應，溫室效應導致冰層融化、海平面上升。 (請填空)
This is a chain of problems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse efect, which leads to melting of glaciers, which leads to rising sea levels.