I have so much credit-card debt; I maxed them out to pay for my training.

我的信用卡欠款太多了：我刷爆了这些信用卡，用来支付我的培训费用了。

《柯林斯英汉双解大词典》

I felt bad when I maxed out all of my mom's credit card.

我把妈妈信用卡里的钱都用光了，觉得很不好。

youdao

I can't pay for this-i have no cash, and I maxed out my credit card.

这个我买不起啊，我手头没现金，信用卡之前也刷爆了。

youdao

"As a younger teen, I actually received a credit card and didn't know my spending limit and that kind of thing, so I maxed out the credit card and was penalized for it, and that's why I don't have one now, " Shaw said, explaining her previous troubles with credit.

CNN: College can be a crash course in debt