The hard shell on a beetle is an outside protection, as is the "skin", called cuticle, of an earthworm.

甲壳虫身上的硬壳是外表保护层，就像蚯蚓的“皮肤”，它叫角质层。

When genetic characterization of the contents of beetle guts gave some unexpected results, the researchers decided to take a closer look at earthworm DNA.

当甲虫内脏内容物的遗传特性显示出一些意想不到的结果时，研究人员决定进一步研究蚯蚓的 DNA 。

The anatomy of an earthworm is much simpler than that of a man.

和人类比较起来，蚯蚓的身体结构要简单多了。

Lumbrokinase was readily obstained in saline extracts of the earthworm, widely distributed in the entocoele of alimentary tract.

蚓激酶在蚯蚓的生理盐水提取物中很容易获得，广泛分布于消化道的肠腔。

The earthworm lives in soil.

蚯蚓生活在土中。

The earthworm is a useful animal.

蚯蚓是一种有用的动物。

He trampled the earthworm to death.

他踩死了蚯蚓。

An earthworm is a terricolous organism.

蚯蚓是陆生的生物。

That chick pecks out an earthworm from the earth.

那只小鸡从土里啄出一条蚯蚓。

The earthworm can regenerate if it's cut in half.

蚯蚓被切成两段后可以重新生长。

The oral opening in an earthworm is small.

蚯蚓的口是很小的。

Earthworm channels greatly aid root growth.

蚯蚓洞穴极有助于植物根系生长。

No, no, no drilling such a small by earthworm.

不不，蚯蚓钻的没有这么小。

Many nematodes occur in the tissues of earthworm.

蚯蚓组织中有许多种线虫。

The earthworm slithered noiselessly over his foot.

蚯蚓悄悄从他脚上爬过。

Still it showed no anger; it behaved as if it were an earthworm.

它的举动就像蚯蚓一样，仍然没有表现出愤怒。

It also can be used to kill snail in rice field and earthworm in golf court.

它也可以用来杀人蜗牛稻田和蚯蚓在高尔夫球场。

The instructor put one earthworm into each cup that already had water and liquor.

教授在清水和烈酒两个杯子中，各放入一条蚯蚓。

Earthworm populations in arable soils in the United States may be destroyed by frost.

在美国可耕地中蚯蚓的种群会被冰冻所毁坏。

The degree of individual earthworm enduring the toxicity of heavy metals varied greatly.

蚯蚓个体对重金属毒性的耐受程度差别较大。

Ants and flies come together in the spring, I heard in the soil earthworm crawling sound.

飞虫蚂蚁和春天一起降临，我听到蚯蚓在泥土下爬动的声响。

First, we chose a good place. Then my father helped me put an earthworm onto the fishhook.

首先，我们选择了一个好地方，然后我父亲帮我把蚯蚓挂在鱼钩上。

The earthworm mocks the dragon for neither crawling through the dirt nor living in the soil.

蚯蚓讥笑蛟龙既不爬行于泥中也不生活在土里。

As soon as it came near, he recited a mantra, and the snake lay at his feet like an earthworm.

它很快地走得更近了，他背诵了一段咒语，蛇像蚯蚓一样向他攻击。

The results showed that earthworm had obvious influences on the number of soil microorganisms.

结果表明：接种蚯蚓显著提高了温室土壤中不同微生物类群的数量。

The hard shell on a beetle is an outside protection, as is the "skin, " called cuticle, of an earthworm.

甲壳虫身上的硬壳是外表保护层，蚯蚓的“皮肤”，叫角质层，也是保护层。

Sludge reduction performance by earthworm biofilters using quartz sand and ceramsite as media was compared.

比较了石英砂和陶粒滤料蚯蚓生物滤池的污泥减量化效果。