He felt pleasantly drowsy and had to fight off the urge to sleep.

他感觉舒适地昏昏欲睡，不得不击退睡意。

In this rudimentary natural society men go out to hunt and fish and to fight off the tribe next door while women keep the fire going.

在这个原始的自然社会里，男人出去打猎、捕鱼、击退隔壁部落，而女人则继续生火。

Unfortunately these drugs are quite toxic and hinder the body's ability to fight off infection.

不幸的是，这些药毒性很大，妨碍身体抗感染的能力。

Sleeping better may help fight off illness.

良好的睡眠可能有助于抵御疾病。

People with cystic fibroses are unable to fight off such bacteria, even though their lungs produce normal amounts of the antibiotic.

患有囊性纤维变性的人却无法抵抗这种细菌，即使他们的肺部能产生正常数量的抗生素。

People with cystic fibrosis, however, are unable to fight off such bacteria, even though their lungs produce normal amounts of the antibiotic.

然而，患有囊性纤维化的人却无法抵抗这种细菌，即使他们的肺部能产生正常数量的抗生素。

We use them to fight off the bad bacteria.

我们用它们抗击对我们有害的细菌。

Protein can help the body fight off a flu.

蛋白质可以帮助你的身体抵抗流感。

He asks them to use facts to fight off fear.

他要求他们用事实来打败恐惧。

BIG PIC: Glowing Snail Uses Light to Fight Off foes.

大图：发光的蜗牛利用光同敌人战斗。

Antibodies help the body to recognise and fight off germs.

抗体帮助身体去识别和抗击致病微生物。

Always remember to fight off a hurdle by facing it, not by running away from it.

永远记住，击退障碍，需要勇敢面对，而不是逃离躲避。

This means your body can fight off the rubella virus if it enters your body.

这意味着你的身体在风疹病毒进入的时候能战胜风疹病毒。

Let them fight off any ground attackers then turn their attention to the Virophage.

让他们击退任何地面攻击者就把注意力转向了Virophage。

Cisco is struggling to fight off competitors with lower-priced switches and routers.

而思科则正在与定价较低的交换机和路由器供应商苦苦竞争。

When your body has all the nutrients it needs, you're better able to fight off infections.

当机体里有所需的所有营养素，就能更好的抵制感染。

Together, these trigger an immune response which can fight off invading parasites before the second act.

它们共同作用引发一种免疫反应，在第二次活动前就击退入侵的寄生虫。

Smoking is a known risk factor for TB, and may reduce the ability of the lungs to fight off infection.

吸烟作为导致肺结核的一个常见的风险性因素，会削弱肺部抗感染的能力。

You may have to fight off quite a few females with a bamboo stick so that he can see you and only you.

他太招人喜欢了以至于没有女人能抵抗住他的魅力，他太甜蜜了以至于伤不了任何人的心。 你可能要用竹棍子打跑几个情敌以后才能让他看见你，并且只看见你。

It also may help support your immune system, which in turn could help your skin fight off bacterial acne.

它可以帮助你增强免疫系统，进而使你的皮肤战胜细菌。

The wing clubs could have also been used to fight off predators, too, and this brings up an important point.

这种因翅膀结构产生的种群分区也能够用于干掉头领，并且，这是非常重要的一点。

These cells originate in the bone marrow and wind up in the brain, where their job is to fight off infections.

这些细胞在骨髓中生成，在大脑中发挥作用，其功能是抵抗感染。

Icelandic breakfast cuisine - a hearty and hot breakfast to fight off the dark, icy mornings is what's needed here.

在冰岛，人们需要一顿营养丰盛又热气腾腾、能够击退清晨之黑暗和冰冷的早餐。

A good diet and fit body will help you to fight off illness and disease - and to recover more quickly if you do become sick.

良好的饮食习惯和合适的体重能帮助你击退疾病，也能在你患病后帮助尽快恢复身体。

Investors seem to doubt that plans to help troubled financial institutions will be enough to fight off a deep recession.

投资者似乎怀疑挽救陷入困境的金融机构的计划是否足以避免经济陷入严重衰退。

The space saga follows the Terran story line as the Terrans fight off attacks from the extraterrestrials trying to take over.

这部太空史诗遵循人族的故事线索，第一部中人族击退了外星人发起的试图控制人类的进攻。

Scientifically known as Allium sativa, garlic has been famous throughout history for its ability to fight off viruses and bacteria.

从科学角度，已知大蒜系葱属漂白亚麻纤维卷，以其具有抗病毒和细菌的能力自古传闻。