"quit on" in Chinese (Simplified)
放弃（某人）- 抛弃（某人）
Definition
在别人还依赖你的时候，停止支持、帮助或陪伴某人。
Usage Notes (Chinese (Simplified))
主要是口语，有点情感色彩，常用于指某人让别人失望或抛弃别人（如“Don't quit on me!”）。通常说人，有时可指机器（如“我的车抛锚了”）。不同于单纯的放弃，侧重于“抛弃正在依靠你的人（或物）”。
Examples
Please don't quit on me when things get hard.
事情变难时，请不要**放弃我**。
His old car quit on him in the middle of the road.
他的旧车在路中间**抛锚了**。
She felt like her friends quit on her during the tough times.
她觉得朋友们在困难时**抛弃了她**。
After all we've been through, please don't quit on me now.
我们经历了这么多，现在请不要**放弃我**。
My phone always seems to quit on me right when I need it most.
我的手机总是在我最需要时**掉链子**。
He promised he wouldn't quit on the team, no matter what happened.
他说不管发生什么都不会**放弃**团队。