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。
Mohandas Gandhi was born in India in 1869 and was married at the age of 13, following local custom.
莫汉达斯·甘地1869年出生于印度,按照当地的风俗,他13岁时就结了婚。