These are uncomfortable feelings, often as painful as any kind of physical pain.

这些使人不舒服的感觉，与身体上的疼痛一样会让人感到痛苦。

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Pain is painful.

痛苦就是痛苦！

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On the contrary, he was aware that many of the bodily pleasures brought with them pain or had painful consequences.

相反的，伊壁鸠鲁察觉到很多身体上的快乐带来了疼痛或是痛苦的后果。

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It causes the cells to lose oxygen very easily, turning them from round shapes to crescent shapes that cause painful episodes known as pain crises.

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He got up, skied to the finish, then writhed around in pain at the bottom - a painful end to both his day, and his career.

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The side effects from the medicine can also be nasty: Ivermectin may cause fever, itching, skin rash, joint or muscle pain, rapid heartbeat, and painful, tender glands.

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