8. It's clear that...
7. It's hard to say.
6. That's correct / true.
5. What are you interested in?
4. What do these three great minds have in common?
3. What makes a scientist successful?
2. What are they known for?
1. What do they mean?
25. current affairs 时事
☆交际用语☆
24. fall in love with 与……相爱