当你踩下油门踏板，车子会加速。

When you press the ___gas ___pedal the car accelerates.

车子快没油了，我们得去加油。

The car is low on fuel, so we need to stop at a ___gas ___station.

燃烧的天然气形成巨大的火炬。

Burning ___gas creates a massive torch.

氧气是一种无色无味的气体。

Oxygen is a colorless, odorless ___gas.

气球里充满了气体，所以它能飘在空中。

The balloon is filled with ___gas, so it can float in the air.

卷心菜有时会引起胀气。

Cabbage sometimes causes uncomfortable ___gas.