本集核心英语单词及例句：

1.expressions (n.)表现，表示
Laughter is one of the most infectious expressions of emotion.
笑是最具感染力的情感表达方式之一。

2.print out （计算机）打出
I shall just print this out and put it in the post.
我只需把它打印出来，然后投进邮筒。

3.encounter (vt.&vi.)遭遇；不期而遇
Every day of our lives we encounter stresses of one kind or another.
我们在每天的生活中会面临这样或那样的压力。

4.regulate (vt.)调节，调整
The powers of the European Commission to regulate competition are increasing.
欧盟委员会对竞争的监管权越来越大。

5.assistance (n.)帮助，援助
Since 1976 he has been operating the shop with the assistance of volunteers.
从1976年开始，他就在志愿者的帮助下经营这个店。