The Internet was developed during the 1970s by the Department of Defense.

因特网是在20世纪70年代由国防部开发的。

youdao

Now I want to talk about an animal that has a fascinating set of defense mechanisms.

现在我想谈谈一种有着很迷人的防御机制的动物。

youdao

The agency is the central research and development arm of the Department of Defense.

该机构是国防部的核心研究与开发部门。

《柯林斯英汉双解大词典》

The ego is the first line of defense between the self and the outside world.

VOA: special.2010.04.13

This is one of the primary strategies that Milton develops, especially in the first two books of Paradise Lost, as a kind of defense against his dependence on classical literature.

这是弥尔顿发展出的早期策略之一，尤其是在《失乐园》的前两册书中,这似乎是在反驳他对古典文学的依赖。

耶鲁公开课 - 弥尔顿课程节选

be that with the Department of Defense or the State Department,

在国防部或者国务院，

肯尼迪学校 - SpeakingMax英语口语达人

The attack came on the last morning of a two-day visit by U.S. Secretary of Defense Robert Gates.

NPR: Romney Fires Landscapers over Immigration

It rebuffed efforts by Secretary of Defense Robert Gates to develop a next-generation nuclear warhead.

FORBES: Nuclear Weapons: How Few Is Too Few?

Fluor is the largest publicly traded engineering company and a big Department of Defense supplier.

FORBES: The Engineers -- Fluor and KBR -- a Saner Play on Natural Gas?