But it is big enough to produce a reaction from the body's natural defenses for fighting disease.

但是它又足够大到让人体产生对抗疾病的天然反应。

youdao

It has a long way to go to operate an air wing, provide air, surface, and sub-surface defenses for the carrier, supplying the carrier, and training the personnel to operate it. That is many years off.

形成空中作战联队，为航母提供空中，表面，次表面的防御，航母供给以及人员培训和操作等方面都还有很长的路要走。

youdao

The bacteria can be carried in the throat and sometimes, for reasons not fully understood, can overwhelm the body's defenses allowing infection to spread through the bloodstream to the brain.

这种细菌可以留在喉咙部位，有时，由于尚未完全了解的原因，病菌可以突破身体的防御，使感染通过血流扩散到大脑。

youdao

Autoimmune diseases affect the immune system C the body's natural defenses for fighting disease.

VOA: special.2009.04.14

But,they warn that persons with weakened defenses for fighting disease are at greater risk.

VOA: special.2009.10.13

Autoimmune diseases affect the immune system, the body's natural defenses for fighting disease.

VOA: special.2010.06.15

Today the Soviet Union is no more, but the ABM treaty lives on, still blocking effective missile defenses for this country.

CENTERFORSECURITYPOLICY: Center for Security Policy | A New Skepticism on Arms Control, By James T. HackettThe Washington Times, 18 October 1999

In other words, President Clinton is taking the position that not only has no decision been taken to deploy missile defenses for the American people.

CENTERFORSECURITYPOLICY: Clinton��s Contempt of Congress

But Rumsfeld stopped short of proposing any new defenses for satellites or other space-based systems, saying the United States remains committed to the peaceful use of space.

CNN: Rumsfeld orders military space programs consolidated