My heart sank because I thought he was going to dump me for another girl.

我的心情沮丧，因为我认为他要把我甩了，去追求另一个姑娘。

《柯林斯英汉双解大词典》

Well, I figure if you're going to dump me, You should at least, um, know who you're dumping.

嗯，我觉得要是你想甩了我，你至少得知道你甩的人什么样。

youdao

That you're not going to dump me in mid-conversation for a potentially better conversation somewhere else.

你不会因为一个看起来更好的话题来中途打断我们的对话。

youdao

He instructed me to dump a packet of salt and some government-issue powdered grape drink into my water.

FORBES: Pain is good

The CSA was used by her to dump her debt on me.

BBC: Parents face fees for child maintenance rulings