under construction 在建设中

under arrest 被逮捕

15.assess

eg: My lawyer assessed the value of my company at ￡700,000.

我的律师估计我的公司价值70万英镑。

16.remain

We are remaining at home.

我们留在家里

Peter became a judge but John remained a fisherman.

彼得当了法官，但约翰仍然是个渔民。

He's determined to remain loyal to the team whatever comes his way.

他决心不管发生什么事都忠于球队。

The death of the innkeeper still remains a mystery.

客栈老板之死仍然是个谜。

it remains to be seen

还要看情况发展

17.within the reach of sb 在某人手够到的地方

out of one's reach =beyond the reach of sb 某人手够不到的地方

reach for 伸手去拿

reach to 延伸到

eg: The farmland reaches to the river. 农场延伸到河边。

18.consider...as/regard...as/think of...as/look on...as/have...as

认为。。。是。。。

19.an access to 。。。的入口

an introduction to 。。。的入门介绍

an answer to。。。的答案

a key to。。。的答案/关键/钥匙

an entrance to a building 一座建筑的入口

an exit from

a solution to ...

20.turn on/off the lights 开/关灯

turn into eg: turn waste land into rich fields 把荒地变成沃野

turn to sb for help/turn to the dictionary 向某人求助/查字典