3.be riding for a fall

Be riding for a fall 字面上来看是骑马摔倒，其实是表示 自讨苦吃，做事莽撞，做招致风险的事。

例句

The young man has annoyed almost all his fellow workers.I'm sure he's riding for a fall.

这位青年已惹恼了几乎所有的同事。我敢肯定他是在自讨苦吃。

4. be riding high

Be riding high 的英文解释是 to be very successful， 即： 大获成功，一帆风顺， 也可以表示 信心十足，人气高涨，春风得意。

例句

Your emotions may be riding high, and yet this could be in conflict with your conscious intentions.

你也许情绪高昂，但是这和你内心的觉知相矛盾。

The company has been riding high for the last two years, but will their success continue?

这家公司在过去两年里生意一直很成功，但他们的成功还会继续吗？