你需要确保氧气罩紧贴你的脸。

You need to make sure the oxygen mask fits snugly on your face.

飞机上每个座位上方都有一个氧气罩。

There is an oxygen mask above each seat on the plane.

在紧急情况下，请先戴上自己的氧气罩。

In case of emergency, please put on your own oxygen mask first.

乘务员示范了如何正确使用氧气罩。

The flight attendant demonstrated how to use the oxygen mask properly.

医生给病人戴上了氧气罩以帮助他呼吸。

The doctor put an oxygen mask on the patient to help him breathe.

我有一个帮助我呼吸的氧气罩.

I had an oxygen mask to help me breathe.

你知道飞机上为什么有氧气罩么？

You know why they put oxygen masks on planes?

一个男人把氧气罩放到老雄天鹅的头上，给他吸氧。

One of the men placed an oxygen mask over the old cob's head and gave him some oxygen.

舞蹈演示包括穿上黄色救生衣、戴上氧气罩及吹响紧急哨子等。

In the video, the flight crew members are shown dancing animatedly while donning yellow life vests and oxygen masks and blowing emergency whistles.

后来我妻子过来,把氧气罩又盖在我脸上.

And then my wife would come and put the mask back over my face.