bogie
/ˈbəʊgɪ/noun
(pl. -ies)
1- chiefly Brit. an undercarriage with four or six wheels pivoted beneath the end of a railway vehicle〈主英〉（铁路车辆的）转向架。
1.1
- Indian a railway carriage〈印度〉铁路客车车厢。
1.2
- chiefly N. English a low truck on four small wheels; a trolley〈主北英格兰〉四轮低车身卡车; 手推车。
词源
early 19th cent. (originally in northern English dialect use)： of unknown origin.