two pln.对讲电话线
twonum.二;两个
two wire system双线系统
two-dimension二维
two plane joint双平面关节
two-way canal双向运河
two individuals两种个人
two tier system双重轨制
two step scheme两步法
two-fold step二倍稀释步骤
two stage assay二步分析
two-chamberedadj.两院制的