Nowadays, if we go on the street, we can find that fast food is everywhere, the reason why the fast food is so popular lies on that it is convenient. People can finish their meal quickly and spend more time to do work. Fast food indeed saves people a lot of time, but it is not good for our health, we should not eat it often. 　　現在，如果我們走在街上，可以發現到處都有快餐，快餐流行的原因在于它方便。人們可以快速吃完他們的餐，花多點時間去工作。快餐確實可以節省人們很多的時間，但是那對我們的健康也不好，我們不應該常吃快餐。