It is common knowledge that some politicians are receiving bribes.

政客中有人接受贿赂是众所皆知的事.

It is common knowledge that WCF is a very powerful technology.

这是众所周知， WCF 是一个非常强大的技术。

It is common knowledge that blindness is the absence of sight.

这是一种常识，失明是指人失去视觉。

It is common knowledge that irradiated cats have 18 half-lives .

众所周知，辐射猫有18个半衰期。（猫有九命，辐射猫即18个半条命。）

It is common knowledge that iron has little use in its pure state.

大家都知道纯态的铁几乎没有用处.

It is common knowledge that swimming is one of the best forms of exercise.

大家都知道游泳是最好的锻炼方式之一。

It is common knowledge that weight is a pull exerted on an object by the earth .

众所周知，重量是地球作用在物体上的引力。（谓语分译）

It is common knowledge that bodies are lighter in water than they are in air.

众所周知，物体在水中比在空气中轻。

It is common knowledge that weight is a pull exerted on an object by the earth.

众所周知，重量是地球作用在物体上的引力。（谓语分译）

It is common knowledge that the Chinese invented paper - making and gunpowder.

中国人发明了造纸术和火药,这不过是常识罢了.