In the images, you see all kinds of possible defense constructions to hold back the Romans, Germans, Vikings, and now nature as enemy number one.

在这些图中，你可以看到各种可能用于抵御罗马人、德国人、维京人的建筑，而现在大自然是头号敌人。

youdao

Because the number one factor that will determine whether they succeed or fail in life is the kind of friends they choose - friends who hold them back or friends who spur them on.

因为决定他们生活是成功还是失败的最总要的因素是他们选择了哪一类的朋友——是让他们堕落的人还是激励他们前进的人。

youdao

Being the nation's number one Latin program in terms of student interest takes the campus back to its roots.

从学生兴趣方面来说，成为全国最大的拉丁语项目，将大学校园带回了其根本。

youdao

And The Beatles are back at number one in the US with their greatest hits album 1, which has now sold more than 2.5 million copies across the Atlantic.

BBC: Charlotte breaks US chart record

The Liverpool boss has been linked with Juventus again this week, with the Serie A club reportedly having made him their number one target back in January, but Quilon dismissed the recent rumours.

BBC: Liverpool put up for sale by American owners

The former world number one, who is back in the top 10 after making the quarterfinals in Miami last week, admitted she managed to beat Vesnina despite eating too much before the match.

CNN: Serena makes winning clay comeback