1. 保持生态平衡很主要。2. 懒汉谋生日益艰难。3. 夏天到湖里游泳多有趣呀！4. 我们多兴奋啊！5. 怎样处理垃圾是个大问题。
1. It is important to keep the balance of nature.2. It is getting harder every day for a lazy man to   get/make a living.3. What fun/How interesting it is to swim in a lake in   summer!4. How excited we are!5. How to get rid of rubbish is a big problem.
6. 他兴趣是晚饭后下棋。7. 我对他话深感失望。8. 他演讲鼓舞人心。9. 他不知道是否该去那里。10. 他认为帮助他人是他责任。
6. What he likes is playing chess after supper.7. I was greatly disappointed at what he had said.8. His speech i ...