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1·There are good reasons why crop plants do not use dryness defenses already.

已有充分的理由可以说明农作物为什么不使用干旱防御。

2·They have different defenses that help them survive in the wild.

它们有不同的防御措施来帮助它们在野外生存。

3·This was the first suggestion of algal defenses against grazing.

这是藻类抵御放牧的第一次迹象。

4·Angry owners have called on the Government to erect sea defenses to protect their homes.

愤怒的业主呼吁政府建立海防来保护他们的家园。

5·Perhaps we should give special attention to the conservation of such plant species since they lack key factors in their defenses against the environmental disruption caused by pesticide use.

也许我们应该特别注意保护这类植物，因为它们缺乏关键的因素来抵御由使用杀虫剂而造成的环境破坏。

6·The city's defenses were too strong.

维克斯堡城的防御工事实在是太坚固了。

7·You saw a centric model of three layered defenses.

在其中介绍了包含三个防御层次的中央模型。

8·The outpost didn't have enough soldiers or defenses.

据点没有足够的士兵或防御措施。

9·Limits to defenses against warmth and acidic waters.

抵抗气候变暖和酸化水质的极限。

10·The scientists are running up against plants' natural defenses.

科学家们启动破坏植物自然防御系统的研究。

防御

1·He engineered a type of virus, known as a phage, to destroy biofilms and sabotage their defenses against antibiotics.

他设计一种病毒，也就是噬菌体，用来破坏生物膜，攻破细菌抵抗抗生素的防御体系。

2·Gillman says that if plants in warmer climates evolve more quickly, mammals living there will also have to speed up their evolution to keep pace with their food's rapidly adapting defenses.

吉尔曼称，如果生长在比较温暖气候中的植物进化得较快，生活在那里的动物也将不得不加快进化速度，以便跟其食物的快速适应性防御保持同步。

3·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。

4·The air defenses of France and England, their greatly superior naval strength, their manpower, their resources, their resolution, make it certain that they can defend themselves.

英国和法国牢固的空中防御，强大的海上力量，充裕的人力物力和不屈不挠的精神，确保了他们自卫的能力。

5·Employing active cyber defenses and other new defense approaches.

积极运用赛博防御和其他新的防卫方法。

辩护

1·Bernanke offered one of the most detailed and strongest public defenses of the Fed's role in preventing a bankruptcy at Bear Stearns in March.

贝南克提供了一个最详细和最强烈的关于美联储的作用的公开辩护：即挽救贝尔斯登(Bear Stearns)投行在三月的破产。

2·One of the oldest intellectual defenses of theism is I the cosmological argument also known as the argument from first cause.

有神论最老的理性辩护之一是宇宙成因论，也称第一推动力论。

3·Certain defenses may be made by motion rather than included in the answer.

某些辩护可以动议提出，而不是包括在答辩状中。

4·Even if you have no defenses, the form letter says, you may be able to keep living in your home for weeks, months or even years without paying your mortgage.

他在正式的律师信中说：即便你“不辩护”，不偿付住房按揭，你也照样可以继续住几个星期，几个月甚至几年。”

(1)national defense国防

(1)air defensen. 防空

(1)defense system防御体系

(1)defense against防御；保卫

(1)defense secretary国防部长

(1)department of defense国防部