1. Even his opponents were compelled to admit that he was a man of profound learning: and this not merely in his special field of economics, but also in history, philosophy, and the literature of all countries.
    即使是他的对手们也不得不承认他是一个学识渊博的人：这不仅是指他的经济学专业领域，而且还包括历史、哲学以及各国的文学。

2. He was in a state of profound shock.
    他深受震惊。

3. Car alarms constantly scream at us in the street and are a source of profound irritation.
    在街上，汽车的防盗警报不断对我们吼叫，这是人们极度烦燥的一个原因，

4. O listen! for the vale profound
    啊，你听！连那深深的山谷，