When it comes to sleep, people’s opinions vary. Some people think that we should sleep as much as possible to keep our mind conscious. Some people think that we shouldn’t sleep too much because long time sleep makes people sleepy. In my opinion, appropriate sleep can not only refresh our mind but also keep us energetic. 
當(dāng)談到睡眠的時(shí)候，人們意見(jiàn)不一。一些人認(rèn)為為了讓我們的大腦更清醒，我們應(yīng)該多睡覺(jué)。一些人認(rèn)為睡太久會(huì)讓人們睡不醒。就我看來(lái)，我認(rèn)為適當(dāng)?shù)乃卟粌H能讓我們的大腦更清醒，而且也能讓我們更有活力。
First of all, enough sleep makes us energetic. After a day’s working, people feel tired. Therefore, a good and enough sleep can help people recover from the exhausting status. 
第一，充足的睡眠讓我們更有活力。經(jīng)過(guò)一天的工作，人們感覺(jué)很累。因此，充足的睡眠能夠讓人們從疲憊的狀態(tài)中恢復(fù)過(guò)來(lái)。
Secondly, sleep enough can avoid illness. It is investigated that more than 90% people who suffers from insomnia are tending to fall ill easily compared with those who have enough sleep. 
第二，充足的睡眠能讓我們避免得病。據(jù)調(diào)查，90%的失眠患者比那些有著充足睡眠的人更容易生病。
Thirdly, enough sleep benefits our mind. According to researcher from American and French, the “Sharp Wave Ripple” in brain which is responsible for strengthen memory can only appear when people fall into deep sleep. If we have enough sleep, then our memory will be improved so that we can learn things more efficiently. 
第三，充足的睡眠讓我們的大腦更有益。美國(guó)和法國(guó)的研究者支出，大腦中的“尖波漣漪”專(zhuān)門(mén)負(fù)責(zé)記憶，這種漣漪只會(huì)在深度睡眠的狀態(tài)下出現(xiàn)。如果睡眠充足，那么記憶會(huì)得到改善，因此我們能夠更有效的學(xué)習(xí)。
All in all, enough sleep makes us energetic, benefit our mind and also help us to avoid from being ill. Hence, people should get enough sleep.
總之，充足的睡眠能讓我們更有活力，有益于我們的大腦，能夠避免生病。因此，人們應(yīng)該充足的睡眠。

《論睡眠 On Sleep》永久閱讀地址: http://www.jiazhineng.cn/yingyu/27089/