a savvy investor的用法和样例：
- It'll just make you a stronger and savvier investor.
- Savvy investor Buffett appears to have timed his departure last fall just about right.
- As a savvy Capricorn, you usually are conservative about spending.
- Looking back on his childhood, one can see the budding of a savvy businessman.
- A savvy consumer would do shopping during the time for promotion at the shop.