爱因斯坦的幽默语录里有这么一句话:As far as the laws of mathematics refer to reality,they are not certain;as far as they are certain,they do not refer to reality.你们知道这句话的意思吗?没错,它的意思就是:当数学原理用于现实时,是不确定的;当它们确定时,又不适用于现实。本句绕口令式地运用了refer to这一重要短语。refer既可作及物动词又可作不及物动词用,我们一起来了解一下它的用法。 As far as the laws of mathematics refer to reality, they are not certain; as far as they are certain, they do not refer to reality. Do you know the meaning of this sentence? True, it means that when mathematical principles are used in reality, they are not certain; they do not apply to reality when they are established. This sentence uses the important phrase refer to. refer can be both transitive verb and intransitive verb, let’s get to know its usage.