We need to ensure a smooth transition between the old system and the new one.

我们得确保新旧制度间的平稳过渡。

《牛津词典》

These man-made barriers will ensure a very high degree of protection for several hundred years.

这些人造屏障将会确保几百年的高度保护。

《柯林斯英汉双解大词典》

To ensure a good crop the soil had to be turned over twice.

要保证收成好，地要翻耕两遍。

《新英汉大辞典》

involvement in Afghanistan. On one hand, congressional Republicans are pressing the president to beef up U.S.forces to ensure a victory over al-Qaida and the Taliban.

VOA: standard.2009.09.28

When I go around as a blind person, with my stick, ensure of myself among people, I feel that I am an object of respect and admiration.

当我像盲人那样拄着拐杖行走，确信自己走进人群当中的时候，我觉得自己称为了别人尊敬和仰慕的对象。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

But Abdullah added that steps must be taken to ensure a fair vote next month.

VOA: standard.2009.10.25

This deregulation would ensure a steady supply of low cost energy, essential to booming economic growth.

FORBES: The GOP Jobs Plan Vs. Obama's

Auto blink detection, auto face exposure and pop-up flash ensure a great shot every time.

ENGADGET: Polaroid confirms iM1836 mirrorless with Android, adds three more cameras

This nurturing environment will ensure a long future for the brand, according to Arnault.

CNN: The changing face of luxury fashion