切尔西爱吃鱼
通常是necessary/necessarily ----------------------------the necessary tools.必备的工具It is not necessarily the true:这并非是真的（不是必要的）-----------------------------needed(形容词性）也可
飞鸟鱼虫菲菲
有效的: effective关键: key先决条件: prerequisite竞争对手: rival, competitor企业: enterprise控制（名词）: control保证 : guarantee有效性 : validity达到 : achieve, accomplish企业目标 : enterprise goal, goal of the enterprise整体目标: overall goal.
派大海绵
effectivekeypreconditioncompetitorenterprisecommandassurevalidityachievecompany's goalthe whole goal
饭兜兜兜得牢
英语 pre-requisites 翻译为中文，意思是预备知识、先决条件。例如， They also do not have access to quality health care or other prerequisites for upward social mobility. 他们也无法获得高质量的医疗保健或其他社会向上流动的先决条件。
