Daily Chinese Idiom Guessing Game
Can't help feeling a certain way; unable to control one's emotions.
禁抑制。感情激动得不能控制。强调完全被某种感情所支配。
南朝梁·刘遵《七夕穿针》诗步月如有意，情来不自禁。”
She couldn't help laughing when she heard the joke.