NO-BOOK口语提高版 Lesson128:底部
文本：
Lesson 20 Bottom
1. Bottoms up!
2. The bottom line is nomey.
3. I lost my bottom dollar.
4. At the bottom he is kind and good-natured.
5. I thank you from the bottom of my heart.
6. My bottom hurts after this long ride.
7. I swim to the bottom.
8. Let's clean our dorm from top to bottom.