The society wouldn't be as advanced as it is unless we had well educated, efficient and industrious workers.

industrious 是由名词 industry（工业、产业）加上形容词后缀 -ous 构成的形容词。industry 源自拉丁语 industria，意为"勤奋、勤勉"。industrious 表示"勤奋的、勤劳的"，形容人工作努力、不懈怠。