1. A going concern 赢利企业

Concern 在该习语中作名词，意思是"商行，企业"；go指"上涨。增涨"。A going concern是指"活跃或繁荣的企业或机构等"，意即"赢利企业，正在前进的企业"。例如：

A: What's your overseas branch factory going? 你海外的分厂进展如何？

B: Not very good at first. It has been two years before it becomes a going concern. 开始不太理想，直到两年以后才开始赢利。

A: Once you break the ice, it will be better and better. 一旦打开局面，肯定会越来越好的。

B: I hope so. 但愿如此。

2. A leap in the dark 冒险举动

Leap的意思是"跳，跳跃"。在黑暗中跳跃确实是一种冒险的举动，因此该词组引申为"瞎闯，冒险举动"。例如：

His move to America was a leap in the dark.（他迁居美洲是件冒险的事。）

A: Are you sure you can make profits out of the investment? 你确信这次投资一定能获利吗？

B: I am not sure. It's only a leap in the dark. 我也没有把握。这只是一次冒险。

A: And it's the only chance for you to lead your company out of difficulties, isn't it? 而且这也是你带领公司走出困境的唯一机会，是吗？

B: Yeah. So I have to have a try. 是的。所以我必须一试。