top gearhigh gear高速挡
Top Landing Gear顶部起落架
over top-gear超速档装置
top grade gear steel高级齿轮钢
top top gear汉米尔顿和维特尔同车竞技;巅峰拍挡
top grade gear高级齿轮
top-gear船索具
furnace top distributing gear炉顶布料器
top distributing gear炉顶布料装置
N（名词） the highest gear in a motor vehicle 最高挡 (Often shortened to top)