Who wants cake?

谁想要蛋糕?

I do, I do!

我要，我要!

I hope there is ice cream, don't you?

我希望有冰淇淋，你不想吗?

Birthday parties are really fun.

生日派对真好玩。

There are balloons and colorful party hats.

有气球和五颜六色的的派对帽。

These girls even have tiny umbrellas on their drinks.

这些小女孩的饮料里居然还有小伞。

Can you hear them singing the Happy Birthday song?

你能听到他们唱生日快乐歌吗?

How many balloons can you count?

你能数有多少个气球吗?

I count nine balloons.

我数了九个气球。

How do the balloons float like that?

气球是怎么浮起来的呢?

If you guessed helium, you're right!

如果你猜是氦气，你就对了!

Helium is lighter than air,...

氦气比空气轻，…

...so it makes the balloons float when it's inside them.

…所以它在气球里的时候，气球就浮上去了。

Can you guess how old this birthday girl is today?

你猜过生日的这个女孩今天几岁?

I'll give you a little hint.

我给你个小提示。

Count the number of candles on the cake.

数数蛋糕上有几根蜡烛。

Did you count six?

你数有六根?

Great job!

真棒!

Do you think that she'll blow all of them out with one try?

你相信她一口气能把全部蜡烛吹灭吗?

I do.

我信。

I hope that your next birthday party is fun, too.

我希望你下一个生日派对也一样好玩。