But first, the students need to fill the ballon with helium gas, so it can rise.

但首先，学生们需要将气球装满氦气，这样气球才能升空。

The ballon will help your friends find you.

气球能够帮你的朋友们找到你。

The red ballon exploded when I popped it with a pin.

我用针扎了那红色气球后，它爆炸了。

They need a lot of helium, fully blown up, the ballon will be 2 to 3 meters in diameter.

他们需要大量的氦气，装得慢慢的，气球的直径将达到2到3米。

Mind you, you only need twenty ballons and a table-you don't need any special engines or anything like that!

请注意，您只需要二十个气球和一张桌子——您不需要任何特殊的引擎或类似的东西！

The students tested all the instruments. When they are certain everything is operating correctly, they attach the container to a weather ballon.

学生们测试了所有仪器，当确认一切就绪后，就将容器绑在一个气象气球上。

Alan Eustace, a senior vice-president at Google jumped from a massive helium ballon more than 40 kilometers above the earth. From Los Angels, David William reports.

谷歌公司副总裁艾伦·尤斯塔斯从距离地球表面40公里处的巨大氦气球跳下。戴维·威廉在洛杉矶报道。

Wearing a specially designed space suit, Alan Eustace was lifted off an abundant airport runway in New Mexico by a ballon filled with helium.

艾伦·尤斯塔斯身穿特制的太空服，被一个装满氦气的气球从新墨西哥的飞行跑道上升起。

Over the cost of the next 2 hours, the ballon has sent him to a height of more than 40 kilometers above the earth.

在未来两小时内，这个气球将把他送到距离地球40多公里的高处。

We tie the ballons to this over a bowl so that any dripping doesn't make any mess and we can save that chocolate for later.

我们把气球绑在这上面，悬着巧克力碗，这样任何滴下来的东西都不会弄脏，我们可以把巧克力留到以后吃。