tanker

这艘油轮正在港口装载原油。

The ___tanker is loading crude oil at the port.

坦克手在战场上提供了强大的火力支援。

The ___tanker provided strong firepower support on the battlefield.

这名坦克手在演习中展示了出色的驾驶技巧。

The ___tanker demonstrated excellent driving skills during the military exercise.