围住

The densities of each specific material vary greatly, but when used in explosives density can be changed in order to attain different magnitudes of thrust and brisance.

在学校的时候，我的焦点将得到围住炸药和精力充沛的材料的观念的理解。然后我想要参与新精力充沛的化合物的&发明&、综合、测试和申请。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。