He is as slippery as an eel and simply refuses to be pinned down on anything.他很圆滑,什么事情都不肯承担责任.She's as slippery as an eel.她像狐狸一样狡猾.'I'm Ben Gunn, I am,'replied the maroon, wriggling like an eel in his...
在肠内发育成熟的钩虫长2--3厘米.Fully - grown hookworms in the gut are 2 to 3 cm long.目的观察伊维菌素和阿苯达唑伍用驱治钩虫和鞭虫感染的疗效.Objective To observe the curative effects of ivermectin combined with albendazole against hookworm and whipworm.在过去的几个世纪...
Sewage nutrients do increase algal growth in the harbour.污水中的营养物确实会加快港口的海藻生长。During an algal bloom the PH of the water can be as high as 10.藻类水华期间,水的pH值可高达10.And the ore contains hydromica ( illite ), quartz, organic mat...