1. Perhaps half of the farm laborers are undocumented immigrants. 也许农场工人中有一半是非法移民。
2. The Japanese provided the labor and the crop was divided between laborers and landowners. 日本人提供劳动力，农作物由劳工和地主瓜分。
3. This same system was originally utilized by the Chinese laborers who had preceded the Japanese. 这种制度最初是由先于日本人的中国劳工使用的。
4. At first, thousands of unskilled laborers were recruited; by the 1730's, however, American employers demanded skilled artisans. 起初，数千名非熟练工人被招募；然而，到了18世纪30年代，美国的雇主需要有技术的工匠。
5. After 1815 this older form of manufacturing began to give way to factories with machinery tended by unskilled or semiskilled laborers. 1815年后，这种古老的生产方式开始让位于那些由无技能或半熟练工人操作机器的工厂。
