475. It is fairly well-known that... However, it is less known that...
...，這是為人們所熟知的；但是，人們卻不大清楚...

六級詞匯講解:
本句型可以用于各種文體中，說明兩種完全不同的情況，通常用在文章的中間部分。fairly在此意為“相當地”。如：
It's fairly hot today.
今天相當熱。

其中，fairly可以替換為其他副詞，如：quite、extraordinarily等。本句型中所需替的部分為that引導的主語從句。

句型拓展:
It is quite well-known that entering WTO brings us many profits. However, it is less known that many domestic companies are facing great challenges and serious problems at the same time.
人們都熟知，加入世界貿易組織給我們帶來了很多好處。但是，人們不太了解，與此同時很多國內的公司都面臨巨大的挑戰和嚴峻的問題。
People know it well that entering WTO brings us many profits. However, they have little idea that many domestic companies are facing great challenges and serious problems at the same time.
人們清楚地知道，加入世界貿易組織給我們帶來了很多好處。但是，他們不知道的是，與此同時很多國內的公司面臨著巨大的挑戰和嚴峻的問題。