没有: not have; there is not; be w ...防守: defend; guard的: 4次方是 The fourth power of 2 i ...地区: area; district; region无: not have; there is not; be w ...保护区: protection zone没有防守的地区: uncovered territory没有防守的: unfenced; unguarded外场员防守的地区: slips有防守的区域: covered area难以防守的地位: vulnerable situation守门员移动后防守的地方: deep防守的: defensive没有被对手严密防守的: open无保护: u rotected; unprotected没有洪水的地区: no flood area /flood-free area不可防守的: untenable不能防守的: untenable无人防守的: clear; uncovered; unguarded; unmarred; unopposed荒地区，原生环境保护区: wilderne zone; wilderness zone如果没有自然保护区: if we do not create nature reserves more animal species will probably become extinct没有防护的: unprotected没有防卫: unfence保护区: protection zone 东北虎保护区 manchurian tigers zone 无保护播种: pure sowing
