1. He twisted his body painfully.
    他痛苦地扭曲着身体。

2. He turned, painfully, slowly, trying not to move his arms at all.
    他痛苦地转过身去，慢慢地，极力让自己的胳膊一点也不动。

3. Yet even this painfully-bought self-knowledge found its way into his comic creations.
    然而即使是这种以沉重代价换来的自知之明也在他的喜剧创作中得到了表现。

4. My mother is dying slowly and painfully after suffering a massive stroke.
    我的母亲得了严重中风，现正缓慢而痛苦地朝着死亡走去。