tier
noun /tɪə(r)/
/tɪr/
- a row or layer of something 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 - in tiers The seating is arranged in tiers.
座位是一级级排列的。
- a wedding cake with three tiers
- 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 - the lower tier of government
下层政府
- We have introduced an extra tier of administration.
词源late 15th cent.: from French tire ‘sequence, order’, from tirer ‘elongate, draw’.