secondine内珠被
secondadj.第二的;次等的;再一个的num.第二n.片刻;秒adv.第二;其次v.支持;赞成;附和;调派
second-phase particle第二相粒子
Second Empire of France法兰西第二帝国
second deformation zone第二变形区
second intensity moment光强二阶矩
second language teacher第二语言教师
second-order remained二阶余项
second order transition二级转变
second- class college二级学院
second time around echo第二次返射回波
second line maintenance中修