warnvt.警告；告诫；预先通知vi.发出警告warn against corruption预防腐败warn sb. to stay away警告某人不要靠近warn sb. to be careful告诫 ... 要小心Warn users of the action警告用户此操作warn sb against doing sth让某人警惕或提防某事物warn hydrostatic extrusion温静液挤压Warn sb of possible dangers提醒某人可能存在的危险warn sb. against that men劝某人对那人要提防点Warn them of possible dangers警告他们可能有危险Warn me if authentication fails警告如果验证失败