He ballooned his cheeks as he played the trumpet.

In London, the use of the Tube has ballooned.

在伦敦，坐地铁的人激增。

Membership has ballooned beyond all expectations.

会员的增加比预期的要快.

Breed balloonfish fish to compare the fish that breeds other variety, can score more gain.

养殖河豚鱼比养殖其它品种的鱼, 可获得更多的利润.

Visitors can see objects important in the history of ballooning.

参观者可以看到在热气球史上的重要物品.

We will be ballooning over the lake after lunch.

午饭过后我们将乘坐气球飞过湖泊.

Since the modest start, many interesting characters have filled the pages of ballooning history.

自从这次简易的起步以来, 在乘气球升空的历史篇章中充满了许多有趣的人物.

The balloonist received a rude welcome.

这位气球驾驶员受到了非礼的接待.

The first parachute was built by a French balloonist, Jean Pierre Francois Blanchard.

第一个降落伞是法国气球驾驶员让·皮埃尔·弗朗西科·布朗沙尔制造的.

The balloonist cheated death in spite of the storm.

尽管风狂雨暴,乘气球升空者幸免于难.

Then the balloons would become deflated and the child would come crashing down.

之后汽球就会消气,小孩也就跟着摔下来.

How many balloons would it take to lift a boy off of the ground?

需要多少颗汽球才能将小男孩抬离地面?

In countless films, a small, neglected child gets handed some balloons and then floats away.

在许多电影中, 某个疏人照顾的小孩, 从别人手里拿了几个汽球后就飘走了.

Most big balloons are now filled with helium.

现在许多大气球中充的是氦气.

The first fliers went aloft in balloons.

最早的飞行员乘坐气球升向空中.

He balloons his cheeks when he is hesitant.

他迟疑不决时会鼓起双颊.

Hydrogen is a useful gas for balloons. It is lighter than air.

氢气对于气球来说是一种有用的气体, 它比空气轻.

Balloons suspend easily in the air.

气球容易浮在空中.

Helium is a gas used in balloons.

氦是一种用于气球的气体.

The colourful balloons rose high into the air.

五颜六色的气球腾空而起.

Many children like balloons.

许多孩子都喜欢气球.