1、break through

沖破；突破

Protesters tried to break through a police cordon.

抗議者們試圖沖破警察的封鎖線。

About fifteen inmates broke through onto the roof.

大約15名犯人闖到了屋頂上。

（克服困難或障礙）取得突破

There is still scope for new writers to break through.

仍有一些領域需要新作家們去開拓。

I broke through the poverty barrier and it was education that did it.

我擺脫了貧困，這要歸功于教育。

顯現；顯露

Despite everything, Elizabeth's human side keeps breaking through.

不管怎樣，伊麗莎白還是不斷顯露出其作為普通人的一面。

Sunlight had broken through the clouds.

陽光沖破了云層。

2、prevent

防止

These methods prevent pregnancy.

這些方法能防止懷孕。

Further treatment will prevent cancer from developing.

進一步的治療將阻止癌癥惡化。

阻止；制止；阻礙

He said this would prevent companies from creating new jobs.

他說這將使公司無法創造新的工作機會。

Its nationals may be prevented from leaving the country.

其國民可能會被禁止出境。