语法与词汇 I see the Russian soldiers standing on the threshold of their native land, guarding the fields which their fathers have tilled from time immemorial.无
【正确答案】immemorial: To describe something that has existed for longer than people can remember. 
【答案解析】句意： 我看到那些俄国的士兵站在他们祖国的边疆， 保卫着他们父辈自古以来就耕种的土地。 immemorial指的是“远古的， 无法追忆的”。