don't bet on it (also I wouldn't bet on it) used to tell someone that you think something is unlikely to be true or to happen 不大可能 A: Do you think they'll give me back the money they owe me? 你认为他们会把欠我的钱还给我吗? B: I wouldn't bet on it. 我看不见得。 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，但我看并不见得会，因为今年公司整体营业收入不佳。