I just broke down and wept with tears of joy.

我实在控制不住，流下了高兴的眼泪。

《柯林斯英汉双解大词典》

My car broke down and then I locked myself out—it's just not my day!

我的汽车抛锚了，我又没带房门钥匙—真是祸不单行！

《牛津词典》

I think he just broke down my resistance.

我想，他让我投降了。

youdao

"When coach told me about my mom then I just broke down with tears of sadness, " Leo said.

CNN: SHARE THIS

"I just broke down and cried because it brought it all back, it's a heartbreaking experience for everybody, " says Kia Scherr who lost her husband and daughter in the attack.

BBC: Qasab execution: Mumbai attack survivors react

"I just cried, I broke down, " she said.

BBC: NatWest bank loses 'irreplaceable' family heirlooms