You just turn on the gas, hit the electric starter.

打开气阀 点火。

Mum did you turn down the gas on my veg? .

妈妈 你把我煮菜的火关小了吗。

He turned on the gas and lit the stove.

【turn】他打开煤气，点燃炉子。

Then I turned on the gas heater we had in the bedroom-and didn't light it.

然后我打开卧室里的煤气取暖器——但没有点着。

And, as I look back on that terrible day when I turned on the gas, I thank God over and over that I 'woke up' in time.

而且，当我回顾那可怕的一天， 当我打开煤气时， 我一遍又一遍地感谢上帝让我及时“醒来” 。