single-seatˈsiŋɡlsi:tCOCA¹²¹³²⁶BNC⁸⁶⁶⁶⁰⁺⁹iWeb⁴³⁶⁷⁵Economist⁵³⁵⁸¹⁺¹ 基本例句 单议席;单座位 The Hughes Model280U is an American usually single-seat, sometimes two- seat utility version of the Hughes 269 light helicopter often used in an agricultural role. 美国休斯280U通常采用单人驾驶,有时也可以两个座位,是农业用直升机实用的机型。 b.qzone.qq.com