外国人说 It's a long shot 是什么意思？

　　It's a long shot

　　希望不大的尝试

　　释义：

　　something you try although it is unlikely to be successful 希望不大的尝试

　　例句：

　　It's a long shot, but you could try phoning him at home.

　　I hope to double my profits, but I know that's a long shot.