但无论做什么都没持久力

平时注意锻炼!

am an experienced mandarin teacher in Beijing. I have been teaching mandarin for more than 5 years. Now I am running a mandarin school in Beijing to provide both language and culture program. I hope I can help. My email: [email protected] My website(being constructed and will start to wrok by next Monday): www.clamandarin.com汉语联盟