视频对话：
Why are you folding clothes?
你为什么要折衣服？
Because I'm anal.
因为我在郁闷。
本期学习词汇：
fold
vt.折叠；合拢；抱住；笼罩
vi.折叠起来；彻底失败
n.折痕；信徒；羊栏；（起伏地的）凹处，洼
fold up 折，折叠
例句：
1. He folded the paper carefully.
他把纸小心地折起来。
2. This portable seat folds flat for easy storage.
这张便携椅可以折叠，便于收纳。
3. Please fold your clothes neatly.
请把衣服叠整齐。
4. Make another fold and turn the ends together.
再折一下，把末端对齐。
5. The priest fumbled in the folds of his gown.
牧师胡乱整了整长袍上的褶皱。
6. When not in use it folds up out of the way.
不用时就折起放好。