My hobby is singing. I can sing some English nursery songs. My favorite English song is Let It Go. I try to learn it, but it is too hard to sing. I'll keep practice it. Singing brings me a lot of joy. I like singing.
修改后：
My hobby is singing. I can sing some English songs. My favorite song is "Let it Go". I tried to learn how to sing it well, but it seems to hard for me. I keep on practicing it though. Singing brings joy to me. I love singing.
