BBC news 2010-07-17 加文本

for certain无疑地, 确定地

例句：I can tell you for certain that I am always honest.
      我可以肯定地告诉你, 我一向是老实的。

make sense有道理；有意义；讲得通

例句：This sentence doesn't make any sense.
      这个句子没有意义。

是明智的, 是合情合理的

例句：It would make sense to leave early.
      还是早点走好。

2.And all the American people should rest assured that all of these decisions will be based on the science and what's best for the people of the Gulf.

rest assured确信无疑;放心

例句：You can rest assured of that.
      这你就放心好了。

3.because he suspects that the independence leader was the victim of a conspiracy rather than tuberculosis as most historians maintain.

rather than而不，不

例句：I want to rent a video rather than go to the theater.
      我要去租录像带而不是去看电影。

4.The British defence technology company, QinetiQ, has set a record by keeping an unmanned, solar-powered aircraft aloft for more than a week.

set a record创造记录

例句：He set a land speed record.
      他创造了陆上速度的纪录。