An abnormally low number of leukocytes in the circulating blood.

白血球缺乏症这样一种血液紊乱相关的。

Our bodies are teeming with leukocytes: there are between 4,000 and 11,000 in every microliter of blood.

我们的身体里有大量白血球，每微升血液中就有4000到11000个白血球。

Colostrum also contains high concentrations of leukocytes, protective white cells which can destroy disease-causing bacteria and viruses.

初乳还含有高浓度白血球，这一具有保护作用的白血球可消灭致病的细菌和病毒。

That means relying on many different types of leukocytes to tackle threats in different ways.

这意味着，要依靠许多不同种类的白血球，通过不同的方式抵御入侵者。

As soon as the leukocytes detect them, it takes only minutes for the body's protective immune response to kick in.

白血球发现它们之后，只需要几分钟，身体的免疫反应就会被触发。

They consist of white blood cells , or leukocytes, that fight infection themselves and activate other defense mechanisms.

它们由自身可以抵抗感染和激活其他防御机能的白细胞（或白血球）组成。

Despite this diversity, we classify leukocytes in two main cellular groups, which coordinate a two-pronged attack.

尽管白血球种类繁多，我们仍可以把它们分为两个主要细胞组，它们能双管齐下地攻击敌人。

The immune system relies on millions of defensive white blood cells, also known as leukocytes, that originate in our bone marrow.

白细胞是免疫系统中一个不可或缺的成员，它们也被称作白血球，由我们的骨髓产生。

The blood test showed an increase in leukocytes.

血液检测显示白细胞增加。

High levels of leukocytes can indicate an infection.

白细胞水平高可能表示有感染。