Many people know that rubbish is a big problem on planet Earth.

许多人都知道垃圾是地球上的一个大问题。

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But not too many people know that we need recreation in our life to live healthily.

但没有多少人知道我们在生活中需要娱乐活动来过健康的生活。

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We have all heard of toadstools and know that they are poisonous, but what many people don't know is that a toadstool is actually a mushroom.

我们都听说过伞菌并且知道它们都是有毒的，但是很多人并不知道伞菌也是蘑菇的一种。

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"These ads do have a huge impact. So many people know that they are watching the Super Bowl not just for the game but for the ads, that they are paying close attention to the ads and to the messages."

VOA: standard.2010.01.27

How many people know that three times a week physical exercise,30 minutes each time has the same effect ? as our most powerful psychiatric drugs?

多少人知道，每周三次,体育锻炼，每次三十分钟，与最强劲的精神药物,有同样的效果？

哈佛公开课 - 幸福课课程节选

It's just like, we get to meet so many people that we're going to need to know in the future.

就像，我们可以见到很多将来需要认识的人。

认识更多人 - SpeakingMax英语口语达人

My father was a pump operator at the city water plant in Chicago -- many people know that already.

WHITEHOUSE: REMARKS BY THE FIRST LADY AT A CAMPAIGN EVENT

But so many people know that is not the case.

CNN: Commentary: 'Jena 6' rally was about equal justice, not race

Due to this promotion, many people now know that duct tape comes in many colors other than grey.

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