twostepadj.二阶(二阶段;分二期的)
twonum.二;两个
two-wave coupling两波耦合
Two types of social两型社会
twoway relationship双边关系
Two different atoms非等同两原子
two-hand needling双手行针
two stage oxidation两段氧化
two-way stop sign双向停车标志
two circuit feeding双电路馈电
two-step approach两步助跑
two-hybrid method双杂种方法