fifth-wheel trailer編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看fifth-wheel trailerfifth-wheel trailer — 名詞名詞1. a large trailer towed by a pickup truck using a special hitch in the truck bed1.名詞釋義第五輪拖車a large trailer towed by a pickup truck using a special hitch in the truck bed例句They bought a fifth-wheel trailer for their cross-country trip.