这些参考书是我们所必需的的英文

• these reference books are necessary to us

• 这些    these
• 参考书    reference book
• 是    Semantics
• 我们    we
• 必需    essential; indispensable; vi ...
• 的    4次方是 The fourth power of 2 i ...
• 构成整体所必需的    integrant; necessary to form a whole or make something complete
• 维持生命所必需的    vital
• 而这些都是我们所说的话    and these were our words
• 存货, (某行业所必需的)营业用具    stock in trade
• 发展工业所必需的原料    raw materials essential for industrial development
• 坚忍不拔是成功所必需的    great persistence is necessary for success
• 为鸡发育所必需的维生素s    vitamines
• 维持生合所必需的体液    vital fluids
• 维生素 r〔为鸡发育所必需的    vitamin r
• 维生素 s〔为鸡发育所必需的    vitamin s
• 这些就是我们所取得的成果    such are the results we have got
• 不再需要繁殖所必需的性行为…    no need for recreational sex anymore
• 海底潜水员维持活存所必需的综合装备    cave
• 具备构成整体所必需的所有部分的    having or containing all parts that are necessary for completeness whole
• 生命要素〔维持生命所必需的因素    vital factors
• 生物所产生的, 生物的生命活动所必需的    biogenic
• 为鸡发育所必需的维生素r    vitaminer
• 必需的    essential; indispensable for/to; material; necessary; necessitous; obligate; required; requisite; vital
• 这是我们所拥护的    this is what we support

• These reference books are necessary to us .
  这些参考书是我们所必需的。