Eating poorly can make it hard for your brain to work, because it won't have the tools it needs. The same goes for sleep. Scientists now think that when we sleep, our brains clean out toxins and other dangerous materials that keep us from being able to think clearly. Get your 8 hours of sleep (or however much leaves your body feeling refreshed for the entire day) and eat a healthy, balanced diet. Skip out on junk food, sugar, and too much fat. You should eat fruits, vegetables (kale and spinach are good), and healthy protein sources like fish and nuts. Keep all of your work organized in folders and binders and keep a calendar of due dates. Staying organized like this will help keep you from forgetting assignments and tests. It will also help you schedule in study time and relaxation time, in a way that you can create a healthy balance. Staying organized extends to your work space as well. You should keep extras off of your desk that might cause distractions. When you study, start by evaluating what you do know. You can set aside the information you do know for last minute review. Just make sure that you really are comfortable with the material and do set aside at least a little review time before going in for a test. Once you've set this aside, you can focus on conquering the information that you don't know or aren't comfortable with. When you know you have a test coming up, you'll need to really buckle down and devote extra time and focus to making sure you understand the material. Talk to your teacher for some extra, pointed advice on how to prepare for your test. You should at least ask them about the format that you can expect, as well as how it will be graded.  Study for tests in the testing room. Visual learners especially will benefit from this technique. Your brain will associate the visuals in the room with the studying you did and the information you learned, making it easier to recall. Some studies have argued, however, that moving around to different rooms can help you remember information better....

How would you rephrase that briefly using Chinese?
健康饮食，获得充足的睡眠。 做事有条理。 从你懂的地方开始。 为考试做准备。 合理安排时间。