第123句：

lt's no secret that there's a lot to put up with when waiting tables, and fortunately, much of it can be ea8ily forgotten when you pocket the tips.

众所周知，等客人点菜的时候，服务员通常都需要百般忍耐，不过当他们把小费放人口袋的时候，就把这些麻烦忘光了。

六级词汇讲解:
本句的结构是“It +be+名词(no secret)+that从句”，其中it是形式主语，that引导的主语从句是本句真正的主语。
it is no secret意为“众所周知”。如：
It is no secret that Singapore owes it all to its uncorrupt leaders for where it is today.
众所周知，新加坡今天的成绩得归功于其廉洁的领导人。
短语put up with的意思是“忍受，承受”。如：
I could hardly put up with that guy any longer.
我再也不能忍受那家伙了。
pocket作动词讲时，意思是“将……放人口袋”。 tip的意思是“小费”。

六级考点归纳：
it作形式主语的that从句是主语从句的一种，可有如下四种搭配：
It +be+形容词+that从句。如：
It is essential that...绝对必要的是……
It is significant that...重要的是……
It is clear that...很明显……
It+be+过去分词+that从句。如：
It is recommended that...据推荐／介绍……
It is known to us/all that...众所周知……
It is anticipated that...据预测……
It +be+名词+that,从句。如：
It is common knowledge that...……是常识
It is a surprise that...令人惊奇的是……
It is afact that...事实是……
It+不及物动词+that从句。如：
It appears that...似乎……
It happens that...碰巧……
It occurred to me that...我突然想起……