Wetland biogeochemistry is the core of wetland ecosystem ecology process.湿地生物地球化学是湿地生态系统生态过程的核心研究内容.Application of Geographical Information System ( GIS ) to the Study of Mercury Biogeochemistry in the Environment.地理信息系统...
A herd of elephants lolloped across the plains towards a watering hole.一群大象缓慢而笨拙地穿过平原，朝水潭走去。Once there were 70 million buffalo on the plains.北美大平原上曾有过7,000万头野牛。They turned the hills into orchards and plains into granarie...
He dressed very smartly which was important in those days.他衣冠楚楚——这一点在那个时候很重要。The housekeeper moved smartly to the Vicar's desk to answer the call.管家迅速来到牧师的书桌前接电话。He was a big man, smartly dressed in a suit and tie.他...