A good rule of thumb is that a broker must generate sales of ten times his salary if his employer is to make a profit.

一个很好的经验法则是，雇主要获取利润的话，其中间人必须创造10倍于自己薪水的销售额。

《柯林斯英汉双解大词典》

My TDD rule of thumb is that tests should be moist but not drenched.

我的 TDD 经验法则是，测试应该是湿润的，但是不要湿透。

youdao

This rule of thumb won't work in every case.

这种大拇指式的规则并不总是有效。

youdao

Light travels basically a foot in a nanosecond. Simple rule of thumb.

光行进的速度是每纳秒一英尺,很简单的经验法则了。

麻省理工公开课 - 计算机科学及编程导论课程节选

That's actually a really good rule of thumb.

那实际上是一个好的经验法则。

哈佛公开课 - 计算机科学课程节选

So really, the rule of thumb if you think back to Scratch is -- that any time you write a statement -- -- something that does something in one line of code -- you generally need the semicolon there.

实际上，根据经验，你们回忆一下在Scratch中,任何时候你们写一条语句-,处理一些操作的一行代码-,你们通常需要在那里加个分号。

哈佛公开课 - 计算机科学课程节选

For tax-conscious investors, it's a good rule of thumb to sell losers while holding onto winners.

FORBES: Magazine Article

As a general rule of thumb for TV appearances, I suggest following what the masters do.

FORBES: To Button Or Not To Button, That Is The Question -Media Training

The prevailing rule of thumb is that deflation, not inflation, is the dreaded external reality.

FORBES: Magazine Article