查询词典 Trematoda

Of or belonging to the Trematoda.

寄生的扁虫，有用于吸附宿主的外生吸管。

Any of numerous flatworms of the class Trematoda,including both external and internal parasite s of animal hosts,that have a thick outer cuticle and one or more suckers or hooks for attaching to host tissue.

吸虫任一种吸虫纲的扁平蠕虫，包括以动物为寄主的各种生长于内部和外部的寄生虫，其外部有一层很厚的角质层，长有一个或多个吸口或钩子。

Coevolution, freshwater snails, maintenance of sexual reproduction, Red Queen hypothesis, Trematoda, parthenogenesis.

&研究表明，在寄生虫丰富的环境中，有性生殖可以赋予物种进化优势，&约凯拉表示。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。