adj.勤劳的;勤奋的
I knew that he was an industrious man. 我知道他是一个勤劳的人。
The Chinese are industrious people. 中国人民是一个勤劳的民族。
The Chinese are an industrious people. 中国人是个勤奋的民族。
n.勤奋
adv.勤勉地;努力地