环节动物

Annelid worms and tunicates have a primitive brain called a ganglionic mass, which is a bundle of several nerves.

环节动物和

One of the segments or divisions in the body of a jointed animal, such as an arthropod.

体节环节动物身体的一节或一部分，如节肢动物

Macro-invertebrate from Annelida, Mollusca and Arthropoda were found in six sections from Baihe to Zhejiang road in the Suzhou River, among which four species were from Oligochaeta, two species from Hirudinea, five species from Gastropoda, two species from Bivalvia and several species from Insecta.

苏州河白鹤至浙江路段6个采样断面大型底栖动物隶属于环节动物门、软体动物门及节肢动物门。其中寡毛纲4种、蛭纲2种、腹足纲5种、双壳纲2种及昆虫纲摇蚊科幼虫与潜蝇蛹。

The small, free-swimming, ciliated aquatic larva of various invertebrates, including certain mollusks and annelids.

担轮动虫多种水生无脊椎动物，体型很小能自由游动的、有纤毛的幼虫，包括某些软体动物和环节动物的幼虫

A total of 13 macrozoobenthos species were identified, belonging to Crustacea (2 species), Mollusca (3 species), Polychaeta (3 species), and others (5 species).

结果表明：在横沙岛、长兴岛共采集到大型底栖动物13种，分属4个主要类群，其中甲壳动物2种，软体动物3种，环节动物3种，其他动物5种。

The results show that 154 species were found in the area,including 60 species of Polychaeta,30 of Crustacea,28 of Mollusca and 24 of Echinodermata;the dominant species are not very distinct,the relative important or common species are Listriolobus sp.,Xenophthalmus pinnotheroides White and Cossurella dimorpha Hartman.

本次调查共获得长江口附近海域大型底栖动物154种，其中多毛类环节动物60种，甲壳动物30种，软体动物28种，棘皮动物25种，其它类群动物11种。群落中优势种的地位都不明显，只有螠虫(Listriolobus sp。)、豆形短眼蟹(Xenophthalmus pinnotheroides White)、拟单指虫为相对重要的种类。

If all Vendobionts are animals, then we can say that not only Sponge, Cnidarian, Ctenophore, Mollusc?

如果震旦生物群中的所有都是动物，那么我们不仅可以认为海绵、刺胞动物、栉水母动物、软体动物、节肢动物是动物，而且还有环节动物和棘皮动物是动物。

Studying the larvae of the marine ragworm Platynereis dumerilii, the scientists found that a nerve connects the photoreceptor cell of the eyespot and the cells that bring about the swimming motion of the larvae.

研究人员以沙蚕环节动物-岩虫幼体进行研究，发现一个神经连接着眼点光感细胞和控制幼虫游泳的细胞。

Any of various invertebrates, as those of the phyla Annelida, Nematoda, Nemertea, or Platyhelminthes, having a long, flexible, rounded or flattened body, often without obvious appendages.

虫：几种无脊椎动物中的一种，如环节动物门、线虫类、纽形动物或扁形动物门，有长的、柔软的、圆的或扁平的身体，经常没有明显的附属肢体

Zoology relating to or belonging to or characteristic of any worms of the phylum Annelida.

环节动物类的任何类的特点和与之相关的。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷