earthworm

释义

n. 蚯蚓

例句

The earthworm is a useful animal. On the ground it is food for other animals. Under the ground, it makes rich soil for fields and gardens.

蚯蚓是一种有益的动物。在地面上它是其他动物的食物。在地下，它为田园和花园制造肥沃的土壤。

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

但是，当甲虫背脊骨包容的遗传特性显示出一些意想不到的结果时，这些研究人员决定仔细查明蚯蚓的DNA。