protect against

Some barrier contraceptives also help to protect against sexually transmitted infections.

有些屏障避孕还有助于预防性传播疾病.

Each type evokes antibodies which protect against the homologous, but not heterologous virus.

每一种抗原型都能产生抗同种病毒的抗体, 但对异种病毒则不能.

Current vaccines to protect against cholera must be kept in cold storage.

目前对霍乱的免疫必须冷藏.

Each type evokes antibodies which protect against the homologous.

每一种类型都能产生抗同种病毒的抗体.

The bags have tough exterior materials to protect against knocks, rain and dust.

这些包的面料非常结实耐用，可以防撞、防雨并防尘。

These measures will protect against a range of infections.

这些措施会防止各种感染.

It is obviously counterproductive to treat workers like idiots to protect against those few who are.

为防范少数几个人,把所有的工作人员都当做白痴,这显然适得其反.

It has been claimed that wine helps protect against heart disease.

有人声称葡萄酒有助于预防心脏病。

Such guards also protect against fraying by roe deer.

这种保护措施还可防止獐鹿摩擦损伤.

But once the infection is over, antibodies remain in the bloodstream to protect against future attack.

但是一旦感染过后, 抗体即留在血液中以防备将来再次的袭击.

It can be used for devising systems to protect against frost damage.

它可用来设计防止霜害的方法.

Exercise will not only lower blood pressure but possibly protect against heart attacks.

锻炼不仅会降低血压，而且可能对心脏病有预防效果。

The point is how to protect against accidents.

关键是怎样才能防止事故的发生.

CholeraCurrent vaccines to protect against cholera must be kept in cold storage.

当前用于保护免受霍乱侵袭的疫苗必须被冷藏.

Does this year's flu vaccine protect against the swine flu?

今年的流感疫苗能预防猪流感 吗 ?