释义 |
tierBrE /tɪə(r)/NAmE /tɪr/ nouna row or layer of sth that has several rows or layers placed one above the other 级;阶;层◆a wedding cake with three tiers 三层的结婚蛋糕◆The seating is arranged in tiers. 座位是一级级排列的。one of several levels in an organization or a system 阶层;等级◆We have introduced an extra tier of administration. 我们额外增加了一层管理。◆a two-tier system of management 两级管理制 |