考友们都准备好英语六级考试了吗?本文“2017年12月英语六级作文精选：挑战与改变”，跟着留学群来了解一下吧。要相信只要自己有足够的实力，无论考什么都不会害怕!2017年12月英语六级作文精选：挑战与改变挑战与改变Some people prefer to spend their lives doing the same things and avoiding change. Others , however, think that change is always a good thing...