Extra air tanks to fill lifting ballons.

用来给浮箱(气球)充气的附加空气罐.

Tell the kids that they will be the ballons.

告诉孩子他们将是轻快优雅。

The children helped Danny's father hang up ballons.

孩子们帮丹尼的爸爸挂气球。

The ballons fly up to the sky, they stay above the clouds.

气球飞上天空，他们呆在云层之上。