台湾籍旅美老师今天交给我们的句子是：

That is why you fall even deeper and that's when you slowly start to back away from friends and family, sometimes completely shutting them out. All satisfaction is gone. The little things that used to bring you joy are now worthless. Even the simplest tasks become painful. That is why you lack motivation.
这就是你为什么会陷入更深的低潮的原因，而这个时候你也会慢慢地开始疏远你的朋友与家人。有时候甚至会完全地把他们隔绝在外。所有的满足感都消逝了。以往会让你感到快乐的一些小事现在变得一文不值。即使是最简单的任务都让你感到痛苦。这也就是你缺乏动力的原因。

学习重点：

1.completely 完整地
completely (adv.) 完整地
complete (adj.) 完整的

2.satisfaction 满意
satisfaction (n.) 满意
satisfy (v.) 使满意

3.worthless 一文不值的
worthless (adj.) 一文不值的
worth (v.) 有...的价值
priceless (adj.) 贵重的

4.painful 疼痛的
painful (adj.) 疼痛的
pain (n.) 痛
painstaking (adj.) 煞费苦心地

5.motivation 动力
motivation (n.) 动力
motivate (v.) 刺激、激发