Many of the indigenous insects are needed to pollinate the local plants.需要很多种土生昆虫给当地植物授粉。They contract their bees out to farmers pollinate their crops.他们还和农家作好约定,然后把蜜蜂送去帮农家的作物授粉.Bees pollinate the flowers so the fruits o...
He and Hannah had been scuffling in the yard outside his house.他和汉娜一直在他房外的院子里扭打。Hannah's natural manner reassured her, and she relaxed.汉娜轻松自然的举止消除了她的疑虑，于是她放松了下来。Hannah had " dished up " an astonishing breakfast for ...
Pentagon spokes-man Williams says those talks are coming along quite well.五角大楼发言人威廉斯说那些会谈进展得相当顺利。My little granddaughter caught her heel in the spokes of her bicycle—it was a very nasty wound.我小孙女的脚跟夹到自行车的轮辐里了，伤得很严重。The ...
In this age of thermonulear technolgy, neither view can assure man's preserv ation.在当今的热核技术时代, 这两种观点都不是以保障人类的生存.The term null hypothesis arose from earlier agricultural and medical applic ation of statistics.无效假设这个概...