4周搞定2000+托福核心词
appendage = ap(加强) + pend(悬挂) + age(表名词) = 悬挂在主体上的物件→附加物
coverage = cover(盖) + age(表名词) = 对事情的覆盖→范围
轨道； 轨长
trackage
常考释义
Between 1985 and 1996, for example, America's freight railways dramatically reduced their employment, trackage, and their fleets of locomotives - while increasing the amount of cargo they hauled.
Between 1985 and 1996, for example, America's freight railways dramatically reduced their employment, trackage, and their fleets of locomotives - while increasing the amount of cargo they hauled.
来源于：剑雅6-Test1n. （统称）轨道，铁路轨道线路【铁路】
At present, power electronics technology is quickly extending and applying to the implements for trackage traction and navigations.
当前，电力电子技术正在航行器具中迅速推广应用。
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