New Words：
yard [jɑrd] n. 院子；场地；花园
backyard [ˈbækˌjɑrd] n. 后院；后花园
Sample Sentences：
We parked our car in my uncle's yard.
The children are playing games in the yard.
We have two apple trees in our backyard.
Then he went outside into the backyard and began to repair the fence.
New Words：
human [ˈhjuːmən] n. 人类;人
Sample Sentences：
Dogs can hear much better than humans.
This isn't a human, ' I explained. 'This is just a family robot. '
We're all human, and humans make mistakes, and that's how we learn.
New Words：
destroy [dɪˈstrɔɪ] v. 破坏；摧毁；毁灭；消灭
Sample Sentences：
The building was completely destroyed by fire.
Someone can defeat me, but can not destroy me!
The bridge was destroyed so we couldn't get across the river.
New Words：
entire [ɪnˈtaɪər] adj. 全部的；整个的；完全的
Sample Sentences：
The entire village was destroyed.
What was the best moment of the entire trip?
When his wife died, his entire world was turned upside down.
destroy [dɪˈstrɔɪ] v. 破坏；摧毁；毁灭；消灭
New Words：
cobra [ˈkoʊbrə] n. 眼镜蛇
Sample Sentences：
A king cobra bite can kill a human in 15 minutes.
Some people began to breed cobras for the income.
human [ˈhjuːmən] n. 人类;人
breed [briːd] v. 繁殖；饲养