我们开始给气球充气，最后有一个爆了。

We started to inflate our balloons and eventually one burst.

充气过度的气球。

An overinflated balloon.

她的救生衣未能充气胀起。

Her life jacket failed to inflate.

唐的救生衣未能充气膨胀。

Don's lifejacket had failed to inflate.

充气时迅速向下拉红色的绳套。

To inflate put the red toggle sharply downwards.