assignable造句
        Can be used for types that are neither 
Assignable nor Copy Constructible.
可用于既不可赋值也不可复制构造的类型.
A type playing the role of 
assignable - type in 
Assignable concept.
在可赋值概念中担任可赋值类型角色的类型.
Launching or starting 
assignable units with course management software ( CMI software ).
用 课程管理 软件开始可分配的单元.