请帮我翻译一段话：人的一生就象在拉屎,有时你已经很努力了可出来的只是一个屁.

people's life just like shit, where you might produce nothing more than a gas after great efforts.

people's life just like shit, that you work hard already can come out only a fart.

Person's life as in the Lashi, sometimes you have to work very hard,but be the only one out the escape of gas from the intestines.