accessible可进入的 accessory配饰附属的
precede v precedence n preceding adj
concede承认退让(compromise) admit心服口服 concession recede后退减弱
proceed开始行进 progress前进步 process过程 procedure=step procession队伍
exceed超过领先 excess(n) excessive=over extremely=exceeddingly=highly
succeed继承 successive接替的 necessity(n) necessary=vital
cease=end/stop ceaseless=constantly