Fred and George sloped off to bed some time later, glowering at everyone they passed, and Ginny went not long after that.

过了一会儿，弗雷德和乔治也怏怏而去，对路过的每一个人都怒目而视。

Well, you don't have to slope off like this.

你用不着像这样悄悄溜走。

And of course, it's the end of the parliamentary term, and peace have sloped off now for six weeks.

当然，这是议会任期的结束， 和平已经倾斜了六个星期。

The Earth revolves at a brisk 1,041 miles an hour at the equator, though as you move toward the poles the rate slopes off considerably, to about 600 miles an hour in London or Paris, for instance.

地球在赤道以每小时1675公里左右的速度转动，要是你朝极地移动，这个速度会大大慢下去，慢到比如伦敦或巴黎的每小时900公里左右。