But, my dear niece, please do consider my words very carefully before you decide.
但是我的孩子,在你做出决定之前请一定要认真考虑我的话。
To answer the first part of your question, I'd like to say that our studies were very extensive.
你问题的第一部分,我要说的就是我们的研究非常广泛。
Normal people tend to forget this process unless and until they are reminded of it.
衰老的过程,不经提起,正常人容易忘记;一经提醒,才会记起。