短語詞組短語Light semi -trailer 輕型半掛車semi - trailer kangaroo 袋鼠形半拖車platform semi -trailer 平板式半掛車;平床式拖車bus semi -trailer 客車半掛車Semi -trailer tractors 半掛車牽引車extendable semi -trailer 可延伸的半掛車 返回 semi trailer