noun 下载 🔗分享 底架,底盘。 The supporting structure of a piece of furniture, a vehicle, etc. Examples : "The sturdy underframe of the school's new library table supports the heavy bookshelves. " 学校新图书馆桌子的坚固底架支撑着沉重的书架。 structure vehicle part machine technical 与AI对话词汇游戏阅读练习