Serves you right for using your own device.

活该，谁叫你使用自己的设备。

" Serves you right for coming with him, " he told her severely.

“谁让你跟他来的，这是你咎由自取。”哈利严厉地说。

I also learned useful sentences like " It's a piece of cake" or " It serves you right."

我还学会了一些像“这简直是小菜一碟”或“你活该”这样的有用的句子。

It would serve you right if you had an acute attack of indigestion.

“如果你消化不了，闹肚子痛，这是你活该。”

" It will serve you right if that sly piece does accept one of you, " she said.

" 如果那个小精灵挑上了你们中间的哪一个，那就够他受的了，" 她说。" .

" It serves you right, " said Wemmick, " Get out" .

“这对你来说是对的，”温米克说，“滚出去”。

It serves you right, if you are robbed.

如果你被抢劫了， 这对你来说是对的。

Well, it'd serve you right if I did.

我就算告诉他 也是你活该。

That is why they nip you with their scissors, and it serves you right!

这就是为什么他们用剪刀剪你， 这对你有用！

Serves you right for attacking Lupin, Lupin the protector of the widow and orphan!

为你攻击卢平服务， 卢平寡妇和孤儿的保护者！

" It serves you right, Simion Petrovitch. You shouldn't interfere in what is not your business" .

“这对你来说是对的， 西蒙彼得罗维奇。你不应该干涉与你无关的事情” 。

" It serves you right" implies that you did something wrong, and because you did something wrong now you are suffering.

“It serve you right” 暗示你做错了什么，因为你做错了现在你正在受苦。

So, if you are driving fast down the freeway, above the speed limit and the police catch you and give you a ticket – a fine – " It serves you right, " I could say.

所以，如果你在高速公路上开得很快， 超过了限速，警察抓住了你， 给了你一张罚单——罚款——“这对你来说是对的， ” 我可以说。