摘要:boundary, border, frontier, rim, verge这几个名词都有"边界"的意思。boundary n.边界；界线。多指作为界线的标识物等。The fence marks the boundary between my land and hers.这道栅栏是我的地和她的地的分界线[阅读全文]

摘要:演讲原文(Dwight D. Eisenhower)Jun. 6, 1944Soldiers, sailors, and airmen of the Allied Expeditionary Force, you are about to embark upon the great crusade towards which we have striven these many month[阅读全文]

摘要:BEC 2和BEC3的写作部分里所要求写的文章，从体裁（Genre）上来讲都是说明文（Expository）。而在一篇说明文里，通常一个典型段落一般只能表达一个独立完整的观点。所谓独立完整的含义是指段落里所提出的观点应该是有[阅读全文]