a worker who ties something
同义词：tier
At the moment, Costco cannot buy directly from out-of-state vineyards, but must go through Washington's three-tier distribution system, complete with mandatory mark-ups.
ECONOMIST: If you liked the film ??Sideways??, you'll love this ruling
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。