If a part of your body is painful, it hurts because it is injured or because there is something wrong with it.
Her glands were swollen and painful.
她的腺体肿胀且疼痛。
If something such as an illness, injury, or operation is painful, it causes you a lot of physical pain.
a painful back injury.
令人疼痛的背伤。
Sunburn is painful and potentially dangerous.
晒伤会很痛而且可能会有危险。
Situations, memories, or experiences that are painful are difficult and unpleasant to deal with, and often make you feel sad and upset.
Remarks like that brought back painful memories.
像那样的评论勾起了痛苦的记忆。
the painful transition to democracy.
迈向民主的艰难过渡期。