He's the youngest of the four of us.

他是我们四个中最年轻的。

Retell the situations in the four posts.

复述四个帖子中的情况。

The four pictures are of different flight inventions.

这四张图片展示了不同的飞行发明。

The four shared toys, wrestled, and took naps together.

他们四个一起分享玩具、摔跤和小睡。

Now write the four-paragraph leaflet properly, using the sub-headings.

现在用小标题正确地写四段的小册子。

The four countries that belong to the United Kingdom work together in some areas.

属于联合王国的四个国家在某些领域共同合作。

He set off again towards the West with the four questions going around and around in his head.

他再次出发前往西方，脑海中不断回想着那四个问题。

Matthew is one of the four Gospels.

马太福音是四福音书之一。

Enter the four keta code to proceed.

输入四位数的代码以继续。

Among the four seasons, I like spring the most.

四季中，我最喜欢春天。