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. The rain compelled us to come into the house.
    雨使我们不得不进屋来。

3. "They're freckles. Freckles are good luck, you know," I felt compelled to defend on his behalf, a bit too heatedly as I raised my voice above the noise of the kitchen.
    "它们是雀斑。你知道雀斑象征着好运。" 我感到我得为他辩解。我提高嗓门压倒厨房里的噪声，我自己也感到我太激动了点。