Definition
to completely fill a vehicle's fuel tank
为车辆将油箱加满
Before the long journey, they chose to tank up at the gas station.
在长途旅行前，他们选择在加油站加满油。
You should start to tank up when you see the fuel gauge nearing empty.
当你看到油表接近空的时候，你应该开始加油。
To avoid running out of gas on the way, he made sure to tank up before leaving.
为了避免在路上没油，他确保在离开前加满油。