field n.田地；领域；运动场；场地；田野；JAVA中的范畴vt.接球；派……上场；顺利处理vi.担任外场员adj.田间的；野外的
open adj.开着的；开放的；公开的v.打开；张开；展开；摊开；开始(某事物)；开张；营业；以…开头；宣布启用n.户外；公开
双语例句
The Missouri River and its tributaries have cut deep paths through underlying sandstone and shale, fracturing the open country. 密苏里河及其支流的道道深壑穿过地下的砂岩和页岩，使这个空旷的田野断裂。
