twobitadj.便宜的twonum.二；两个Two Independence两个独立性two-band model双带模型two more service还有两次发球权(裁判用语)two-level atom二能级原子two-curriculum两课教学two-track tape两道带two coupled atom耦合双原子two-way pallet两向球机two-crop paddy双季稻two sided waxing双面涂蜡