【简答题】When you exercise, it is really important to drink lots of water because you lose (失去) water quickly at this time. Also, when your muscles (肌肉) work hard, they need water. When the weather is hot and ...
【单选题】Exercise is good for you, but most people really know very little about how to exercise properly.【C1】______when you try, you can run into trouble. Many people【C2】______that when specific muscles are e...