tier tiә
释义
n. 排, 层, 等级
英文释义
n. any one of two or more competitors who tie one another
n. a worker who ties something
n. something that is used for tying
n. one of two or more layers one atop another
词形变化
复数: tiers
BNC词频排名: 7,616 | 当代语料库词频排名: 8,726