They prey on other invertebrates, which they capture with a unique proboscis.它们用独特的吻捕食其它无脊椎动物.an excretory organ of certain invertebrates.某些无脊椎动物的排泄器官Insects and worms are all invertebrates.昆虫和蠕虫都是无脊椎动物。In the earthworm ...
Insects and worms are all invertebrates.昆虫和蠕虫都是无脊椎动物。In the earthworm and many other invertebrates, these excretory structures are called nephridia.在蚯蚓和许多其它无脊椎动物中, 这些排泄结构称为肾管.But regulators with spine are still better th...
He was an Italian primitive.他是一位意大利早期的艺术家。The book is about the mythologies of primitive races.这本书是原始民族神话集.Duffy's primitive guitar playing is well below par...达菲粗糙的吉他演奏技巧远不够水平。Objective To observe hypokalemia and s...
"Go and have a word with her, Ken," Webb instructed.“肯，去和她谈谈吧，”韦布吩咐道。Ken's jaw jutted with determination.肯坚定地扬起下颌。Ken passed the books to Sergeant Parrott.肯把那些书递给帕罗特警官。...
She pursed her lips together, as though fearing to betray her news.她闭紧双唇，仿佛害怕透露出她的消息。The assistant pursed her lips.那女助手噘起了嘴。Chengyu pointed with pursed lips at the work site opposite.他努着小嘴巴,指着对面的工地....
Bullfrogs became lethargic with the first cold nights.在开始的那些寒冷夜晚,牛蛙变得无精打采.The noise in the zoo turned out to be the croaks of bullfrogs.动物园里喧噪得很,原来是一群牛蛙在叫.Although bullfrogs were introduced into mainland China in 1959, t...