1.据说他已经写了两篇小说了（be said to do sth)
He is said to have written two novels.
2.这个房间长5米,宽4米.（in length)
The room is 5m in length and 4m in width.
3.许多人报告说在山里看到过野人（report doing sth)
Many people reported seeing wild men in the mountain.
4.在参观上海世博会期间我们拍了很多照片（dozen)
While at the World Expo in Shanghai we took dozens of photoes.
5.你的健康肯定与你的生活方式有关（be linked to)
You health is definitely linked to your lifestyle.
6.一群学生正向学校走去（make one's way to)
A group of students are making their way to the school.
7.很多人对一些神秘的传说很感兴趣（show interest in sth)
Many people show interest in mysterious legends.
8.他们认为调查那些神秘的事是很有挑战性的（look into)
They believe looking into these mysterious things are challenging.
9.众所周知,UFO 的存在一直是一个谜（existence;puzzle)
As we all know, the existence of UFO is still a puzzle.
10.人们对此做了很多研究,甚至有人说亲眼看到了（do research on;witness)
People did research on this a lot, and some even say they witnessed it with their own eyes.
11.然而,迄今为止,仍没有令人信服的证据表明它的存在（convincing evidence)
But, up till now, there is still no convincing evidence of its existence.
希望对你有帮助~
天上~