The purpose of the urethra is certainly to have a river run through it.

尿道的作用当然是让一条河流通过它。

The urethra dilatation catheter comprises an epitheca and a hole closing device arranged in the epitheca.

所述尿道扩张导管包括设置在所述扩张导管内的上皮和闭孔装置。

Urethra management system is a typical use of management information systems cases.

排课管理系统是管理信息系统的一个典型用例。