New words：

discussion [dɪˈskʌʃ(ə)n] n.讨论；论述；商讨；详述

Sample Sentences：

The discussion focused on three main problems.
The plans have been under discussion for a year now.
We had a discussion with them about the differences between Britain and the US.

focuse [ˈfəʊkəs] v.集中（注意力、精力等于）；聚焦(于)

New words：

influence [ˈɪnfluəns]
n.影响；作用；影响力
v.影响；左右；对…起作用；支配

Sample Sentences：

Those friends are a bad influence on her.
Our trainer had a strong influence on the team.

He is not a man to be influenced by others.
His experiences in India influenced his later writings.

New words：

miserable [ˈmɪz(ə)rəb(ə)l]
adj.痛苦的；非常难受的；可怜的；使难受的
n.不幸的人；穷困不堪的人；遭受苦难的人

Sample Sentences：

He was born in a miserable family.
What a miserable day (= cold and wet) !
I spent a miserable weekend alone at home.
We were cold, wet and thoroughly miserable.

New words：

miser [ˈmaɪzər] n. 守财奴；吝啬鬼

Sample Sentences：

A miser loves gold above his life.
A miser lives poorly in order to save money and keep it.

New words：

misery [ˈmɪzəri] n.痛苦；悲惨；穷困；悲惨的生活

Sample Sentences：

Jesus, put me out of my endless misery.
The problem was causing the poor woman no end of misery .
It's time to step out of misery and into happiness. You deserve this after everything you've been through.