这里的jump ship指“跳槽,离职;摆脱某种困难处境(通常是你应该坚持下去并处理问题的情况)”。此外,还可以表示“放弃某种想法或计划”。
Leave an organization, group, company/institution, movement, proposal, or idea;to leave one's job.
例句:
He almost had an urge to jump ship when he got in trouble.
他惹上麻烦时就很想跳槽。