tiers的翻译，读音
英/tɪəz/
释义：
n. 等级( tier的复数形式 ); 包扎的人; 一排高过前面一排的东西; 阶梯座位的一排
n. a relative position or degree of value in a graded group
n. any one of two or more competitors who tie one another
n. a worker who ties something
n. a relative position or degree of value in a graded group
n. any one of two or more competitors who tie one another
n. a worker who ties something