Summer—it is a long holiday in my memory.I don't have so long time to relax and play nowadays.
When I recollect summer holiday during my childhood,it was rich and colorful.For example we fished in la...

This summer is possibly the last summer in my student's life .Undoubtedly it is different from others.I spent most of time at school,although new problems apper in my experiment,I will settle in limit...