Question

tier n.列,行,排,层,等级 vt.使造成递升排列,使层叠 vi.成递升徘列 A tier can describe a layer of ruffles on a dress, a section of seats in a stadium, or one layer of a fancy cake. You could also talk about a tier in terms of value or position. For example, the most popular, well-known actors might be considered part of the top tier, getting all the best parts. Tier originated from the Old French word tire: rank, sequence, or order. ★☆☆☆☆ 2014.4

Accepted Answer

[tiə(r)] A tier is a level or a layer. If you sit in the top tier of seats at a concert, you can see the whole stage and most of the audience — but you probably have to climb lots of stairs. Among the commission's 51 members are top-tier-university presidents, scholars, lawyers, judges, and business executives, as well as prominent figures from diplomacy, filmmaking, music and journalism. 1[N-COUNT 可数名词]一排；一行；一列 A tier is a row or layer of something that has other layers above or below it.   [oft N of n]...the auditorium with the tiers of seats around and above it.四周和上方有一排排座位的礼堂Tier is also a combining form.（亦可用于构词）...a three-tier wedding cake.3层的结婚蛋糕2[N-COUNT 可数名词](组织或系统的)层，级 A tier is a level in an organization or system.   [oft N of n]Islanders have campaigned for the abolition of one of the three tiers of municipal power on the island.岛上居民发起一场运动，要求废除岛上三级市政管理层中的一级。Tier is also a combining form.（亦可用于构词）...the possibility of a two-tier system of universities.大学实行双重体制的可能性

英语单词	tier
英美音标	[tiə(r)]
中文释义	n.列,行,排,层,等级 vt.使造成递升排列,使层叠 vi.成递升徘列
vocab简明	A tier is a level or a layer. If you sit in the top tier of seats at a concert, you can see the whole stage and most of the audience — but you probably have to climb lots of stairs.
vocab扩展	A tier can describe a layer of ruffles on a dress, a section of seats in a stadium, or one layer of a fancy cake. You could also talk about a tier in terms of value or position. For example, the most popular, well-known actors might be considered part of the top tier, getting all the best parts. Tier originated from the Old French word tire: rank, sequence, or order.
真题原句	Among the commission's 51 members are top-tier-university presidents, scholars, lawyers, judges, and business executives, as well as prominent figures from diplomacy, filmmaking, music and journalism.
柯林斯星级	★☆☆☆☆
柯林斯解释	1 [N-COUNT 可数名词]一排；一行；一列 A tier is a row or layer of something that has other layers above or below it. [oft N of n] ...the auditorium with the tiers of seats around and above it. 四周和上方有一排排座位的礼堂 Tier is also a combining form.（亦可用于构词） ...a three-tier wedding cake. 3层的结婚蛋糕 2 [N-COUNT 可数名词](组织或系统的)层，级 A tier is a level in an organization or system. [oft N of n] Islanders have campaigned for the abolition of one of the three tiers of municipal power on the island. 岛上居民发起一场运动，要求废除岛上三级市政管理层中的一级。 Tier is also a combining form.（亦可用于构词） ...the possibility of a two-tier system of universities. 大学实行双重体制的可能性
来源	2014.4

Tier Seats Layer Level Top Cake N Count 可数名词