Idiom: "(to) stand a chance"
Definition:
to have the possibility of success
Examples:
1) I’m good at ping pong, but I don’t stand a chance playing against a professional ping pong player.
2) You don’t stand a chance in this class. The professor is horrible!
中文解释: http://www.youzienglish.com/main/idiom_of_the_day/to_stand_a_chance/cn/