laborer

The hardest work was assigned to the strongest laborers.

工作分配给强壮劳工。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

长治，一名工人煤渣垃圾场酣睡。

Laborers were trained to handle 50-ton compactors and giant cranes.

工人们接受操作五十吨压土机和巨型起机训练。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

劳动对象是实践客体子系统,劳动者是实践主体子系统,劳动工具是实践介子系统,生产力是实践系统整体功能。