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1·Generally deer ticks pick up the bacterium while in the larval stage from feeding on infected white-footed mice.

通常，鹿蜱在幼虫阶段通过捕食受感染的白足鼠而感染了这种细菌。

2·Caterpillars are the larval stage of moths and butterflies.

毛毛虫是蛾子和蝴蝶的幼虫。

3·Some 99 percent of all fish mortality occurs in the larval stage.

大约有99%的鱼类死亡都发生在幼鱼阶段。

4·Hydatid disease is a worldwide zoonosis produced by the larval stage of the Echinococcus tapeworm.

包虫病是一种流行于全世界范围的动物源性寄生虫病，主要是由棘虫绦虫幼虫期所引发。

5·Once one of its base mutation, would enable the nematodes remaining in the larval stage, and can not mature.

一旦它的一个碱基发生突变，就可使线虫永远停留在幼虫期，而无法成熟。

6·The larval stage of many tapeworms, consisting of a single invaginated scolex enclosed in a fluid-filled cyst.

每一个囊尾蚴是由一个囊壁和陷入囊腔中的单独一个头节所组成的。

7·The larval stage of certain tapeworms, resembling a cysticercus but having the scolex completely filling the enclosing cyst.

囊尾幼虫许多绦虫的幼虫时期，由在充满液体的囊中单个的肠套头结构成。

8·For M. phoebe, to decrease grazing, especially its effects on the source population during the post-hibernating larval group stage, is crucial for its population restoration and growth.

在春季减少源斑块内的放牧，对于以源-汇集合种群形式存在的大网蛱蝶种群恢复和增长十分必要；