winds blowing from west to east and lying above the trade winds in the tropics
同义词：antitrade wind
antitrade详细解释
an.ti.trade n.（名词）The westerly winds above the surface trade winds of the tropics, which become the prevailing westerly winds of the middle latitudes. Often used in the plural.反信风：赤道地区地表信风上的西风，到中纬地区即变成了盛行西风。常用复数形式
