估计也是早当外婆的命，自己随便就好了。

Early estimates is when the grandmother of life, like yourself.

youdao

所谓“护城河”是说，我所投的这个公司或生意是竞争者很难进入与我竞争的，就好像一个护城河一样，我简历起很高的城墙，别人随便攻不破我，这是我判断要不要投一个公司时非常重要的标准之一。

"The moat" here means the company or business region that I invest should be hard for the competitors to compete against me. It's as same as the moat.

youdao

几个男人成群结队地从我正在走向的街角走出来，穿着如此随便，就好像是在下班回家的路上，但他们都脏兮兮的，看上去不像是游客。

A group of four men turned around the corner I was heading for, dressed too casually to be heading home from the office, but they were too grimy to be tourists.

youdao

You can leave the mike its okay.

麦克风随便放一下就好

耶鲁公开课 - 博弈论课程节选