Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.植入之后不久,胚囊的壁, 即滋养细胞含有两层细胞.The blastocyst is then surgically introduced into the uterus of a foster mother.然后通过手术把胚囊引进寄养母体的子宫...
In Bermuda, Sam's father took him on an excursion to a coral barrier.在百慕大，萨姆的父亲带他到附近的珊瑚礁去游玩。Bermuda arrowroot is most highly esteemed.百幕大竹竽最为驰名....my plaid Bermuda shorts with the elastic waist.我那件束腰的格子呢百慕大短裤The ext...
熊非常好奇，必须不断地给予其智力上的刺激。Bears are very inquisitive and must be kept mentally stimulated.那只熊龇出牙齿，发出一声低沉的吼叫。The bear exposed its teeth in a muffled growl.尼安德特人能够捕杀浑身覆毛的猛犸象和熊。Neanderthal man was able to kill woolly mammoths an...
to be worthy of attention值得注意I did not esteem him to be worthy of trust.我认为他不值得信赖.The desire to be worthy of them could bring out the best in their admirers.他们的敬慕者为了要配得上他们,就会尽量表现出他们自身的美德来....
The ground was strewn with sharp-edged pebbles.地上铺满了棱角锋利的石子。The cloven hooves are sharp edged , elastic and concave.蹄锋利,呈凹形, 富有弹性.Objective To evaluate the effect of sharp - edged intraocular lens ( IOL ) on posterior ca...