回上一層第11部 第九課 --- 請重複跟讀，直到可以於聲音檔的留空之間唸完整句為止；熟練之後您必將可以 "脫口而出" 地說出標準的美式英語
- tie up
- All the employees were tied up with work and unable to show me around.
- Most of their money was tied up in real estate.
- till now
- I've been working all night till now.
- tire out
- Agatha was tired out after the hike.
- tired of
- I am tired of explaining what my job is about.
