I have a backpack. It is large and it is blue. It is a birthday gift from my parents. I love it very much. It is very "hard-working", because I keep all my school things in it. It is very heavy. It is with all the time during school days. It is a good friend of mine.

我有一个背包。它很大，是蓝色的。这是我的父母送给我的生日礼物。我非常喜欢它。它很“勤奋”，因为我学校所有的事情都装里面。它非常重，它陪着我度过在学校的日子。这是我的一个好朋友。