台湾籍旅美老师今天交给我们的句子是：

Extroverts, with their lower level of arousal, would need to do more exciting things that would physically and mentally exhaust an introvert in order to reach satisfaction. So while an introvert might be content with a leisurely bike ride through a quiet park, an extrovert might need to hit the dirt roads in order to feel mentally satisfied.
外向者他们被激发的基线较低，相对地会需要从事较为刺激且会让内向者身心俱疲的活动才能达到满足。因此内向者或许只要悠闲地在安静的公园里骑骑脚踏车就很满意了，但外向者却可能需要骑着车在泥泞的土地上奔驰，才能获得精神上的满足。

学习重点：

1.arousal 唤起、激励、刺激
arousal (n.) 唤起、激励、刺激
arouse (v.) 唤起、激起情欲、叫醒

2.physically 身体上
physically (adv.) 身体上
physical (adj.) 身体的，肉体的
physics (n.) 物理学

3.exhaust 使精疲力尽
exhaust (v.) 使精疲力尽
exhausting (adj.) 使人精疲力竭的
exhausted (adj.) 精疲力竭的
exhaust (n.) 排出的气

4.content 满足的
content (adj.) 满足的
content (n.) 内容、含量、内涵

5.leisurely 悠闲的
leisurely (adj.) 悠闲的
leisure (adj.) 空闲的