我们一起唱生日歌吧。

Let's sing the birthday song together.

我们一起唱生日歌，然后切生日蛋糕。

We sang the birthday song together and then cut the birthday cake.

我们一起唱生日歌，然后他吹蜡烛。

We sang the birthday song together, and then he blew out the candles.

接着，大家唱生日歌。

Then everyone sings Happy Birthday.

所有朋友给露茜唱生日歌。

All her friends sing Lucy a birthday song.

我们吃饭，唱生日歌，我吹灭了蜡烛。

We ate. Everyone sang Happy Birthday and I blew out the candles.

你知道人们什么时候开始唱生日歌吗？

Do you know when people began to sing the songHappy Birthday?

我们吃饭，唱生日歌，我吹灭了蜡烛。

We ate.Everyone sang Happy Birthday and I blew out the candles.

前两天还专门给爷爷打电话唱生日歌，可惜爷爷当时不在家。

Dashu called Yeye a couple days ago and sang Happy Birthday to You, unfortunately, Yeye was not at home when Dashu called.