19世纪，许多苦力被雇佣在美国的铁路建设中从事繁重的体力劳动。

In the 19th century, many ___coolies were hired to do hard manual labor in the construction of American railroads.

这个带有侮辱性的词汇已经被现代社会所摒弃。

The offensive term ___coolie has been abandoned in modern society.