释义
a broadly accurate guide or principle, based on experience or practice rather than theory
经验法则，凭经验（或实践）得来的法则。
短语搭配
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a rule of thumb
实用的估算方法, 经验工作法(常依据经验而非准确测量)
双语例句
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As a rule of thumb, a cup of filter coffee contains about 80mg of caffeine.
根据经验法则 一杯过滤咖啡约含80毫克咖啡因
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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。
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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。
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It's a good rule of thumb, yes.
这是一个号的经验法则，是的。
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Here's a good rule of thumb.
下面是一条基于经验的原则。
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I had a rule of thumb as a reporter.
我有一个作为记者的法则。
百科
1.
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What, to you, is a large crowd? Any group big enough to trample me to death. General rule of thumb is 36 adults or 70 children.
你的大群体怎么定义？大到能把我踩死的那种，按经验估计是36个成人或70个儿童。
《The Big Bang Theory Season 3》《生活大爆炸 第三季》