New Words：

attack [əˈtæk]

v.攻击；袭击；进攻；抨击
n.攻击；袭击；打击；侵袭

Sample Sentences：

The man attacked him with a knife.
If people attack me, I will have to fight back.

I just had a heart attack!
That attack just hits him on the face.
What can we do to protect our homes from the attack of the enemy?

enemy [ˈenəmi] n. 敌人
protect [prəˈtekt] v. 保护
protection [prəˈtekʃn] n. 保护

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