I was quite surprised when I read in your letter that you had decided not to finish your studies at the university.
当我在你的信中看到你已决定终止大学学业时感到很是惊讶。
However, as the evidence began to accumulate, experts from the Zoo felt obliged to investigate,
可是,随着证据越来越多,动物园的专家们感到有必要进行一番调查,