痛苦地

例句：

1. 1. He cried in pain, his face turning red with anger.
   他痛苦地哭泣，愤怒使他的脸变得通红。
2. 2. She was crying in pain, unable to stop the tears.
   她痛苦地哭泣，无法停止流泪。
3. 3. The old man was suffering in pain, barely able to move.
   老人痛苦地呻吟着，几乎无法动弹。