firstadj.第一的;最初的adv.首先;第一n.最初;(序数词)第一
first form cui'vilinear integral
first - year service education入职教育
first arrival refraction statics初至折射静校正
first dorsal interosseous assist(手)痛侧第一骨间辅助器
first order phase transformation一级相变
first grade primary school pupil小学一年级学生
first thoracic veterbral process杼骨
First Markham Place Dental Centre万锦牙医中心