A ditch diverted water from the rill into the fields.一条沟渠把水从河里引向田间.From a practical standpoint, rill erosion forms small channels.从实用的观点看, 细沟侵蚀能形成很小的渠槽.The surface shows deep rill - like folds.表面有深沟槽 状 起伏褶皱....
The Encyclopedia is packed with clear illustrations and over 250 recipes.那本百科全书有很多清晰的插图和250多个食谱。The encyclopedia fell to the floor with a thud.那本百科全书砰的一声掉到地上.Geoff is a walking encyclopedia. He knows about everything.杰夫是...
Scientists call this claw shape the antibody molecule's idiotype.科学家称这种爪型为抗体微小颗粒的遗传型.If the antibody reacted, the blood was tainted and should be discarded.如抗体发生反应, 则说明血液已被感染,便不能使用.It marshals the same antibody resp...
Arrive in the winter, its flix becomes white, with the color lump of snow, differentiate hard.一到冬天, 它的毛皮就变成白色, 与雪的颜色混在一起, 难以分辨.William was going to kick up a fuss, but he realized he'd have to lump it.威廉本想要大闹一番，却意识到...