找不到什么毛病，只好吹毛求疵了。

英文很地道，用丰富的语法结构和词汇

(这是我的弱点)。这里只讨论一下几个词语用法问题。

 

1. Lawn and flower beds are planted by human, and they are too specific.

 

2. the humming bird is categorized by nature - delete "by the nature", because it is actually categorized by human (taxonomists).

 

3. Last sentence is completely off. But it is very interesting from the biological point of view. I can't help laughing about it. .