start business by hard work的用法和样例：
例句
- We must have a clear understanding of the need to work hard and develop a pioneering spirit.
我们对于艰苦创业，要有清醒的认识。 - We must uphold the principles of self-reliance and hard work and let cadres and the general public give full expression to their initiative and creativeness.
要坚持自力更生，艰苦创业，充分发挥广大干部群众的进取精神和创造精神。
