三年后我们可能会纳闷当初我们为什么会使用鼠标这种麻烦的东西。

Three years from now we could be wondering why we ever bothered with a mouse.

youdao

使用三个维度，您就会明白为什么要将其称为多维数据集。

With three dimensions, you can see why it is called a cube.

youdao

OLED技术在显示白色时使用的电力最多，这就是为什么三星给Galaxy s手机的应用程序菜单选配了黑色的背景。

OLED technology USES the most power when displaying white, which is why Samsung chose a black background for the app menus on its Galaxy s phones.

youdao