Definition
to abruptly abandon someone you are involved with or something you are accountable for, typically without notice, often leading to difficulties
抛弃；遗弃；背弃
She ran out on him when he needed her support the most.
在他最需要支持的时候，她抛弃了他。
If you keep running out on your promises, no one will trust you.
如果你一直背弃你的承诺，没有人会信任你。
He ran out on his responsibilities when the company faced difficulties.
当公司面临困难时，他背弃了他的责任。