1. While that is indeed the case, it still explains only a limited part.
2. How is your sleep ? On and off. （断断续续）
3. It's a dull ache. （瘾痛）
4. Sounds like I'm the third wheel. (电灯泡）
5. The customer is lapsed.
6. The customer is dormant
7. I care more about the overall propensity
8. Trade-off 此消彼长
