托福写作：加分句之主语从句

会计考友

Eg: What has caught our attention is /It is noticeable that the environment in both the rural and urban areas is deteriorating.
6 ?9 ^1 `% O) e2 E( A9 m值得注意的是农村和城市的生态环境都在不断恶化。
7 {* y8 z* _3 C% |; r5 a% ?# ~Eg: It is universally acknowledged that environmental pollution becomes one of the most serious problems in China or even the world as a whole. source:veduchina
众所周知，环境污染问题是中国乃至世界面临的最为严重的问题之一。