VOA慢速英语:Ten of Thousands of Technology Lovers Head South to Austin

千百万

famous for

vt.因...而著名

He is famous for the excellence of his fine arts. 
他以优秀的美术作品而闻名。 

not only...but also...

不仅...而且...

应连接两个相对称的并列成分。例如：

　　Not only Mr Lin but also his son joined the Party two years ago. （连接两个主语）
　　I not only play tennis but also practise shooting. （连接两个谓语动词）
　　He plays not only the piano but also the violin. （连接两个宾语）
　　They speak English not only in class but also in the dormitory. （连接两个地点状语）

turn into

使变成
They are turning waste land into paddy fields.
他们正在使荒地变为稻田。

check in

1.到达并登记;报到
He has just checked in at the hotel.
他刚刚在旅馆办好住宿手续。

2.记录
The ticket agent checked in the passengers one by one.
售票员逐一登记乘客。

in fact

事实上
I think so; in fact, I am quite sure.
我想如此,事实上我十分相信如此。