I wouldn't bet on it 我觉得不太可能
An informal expression suggesting that a belief that something is possibly but not likely. (NOTE also: I wouldn't count on it.)
Because you're a good worker, you might get a raise, but I wouldn't bet on it because overall company revenues are weak this year.
你是个好员工,有可能得到升职,但我觉得不太可能,因为今年公司整体营业收入不佳。