Obsessionalism
n. (对某种活动、思想等的)着魔，痴迷
🗣️ 情景例句
That's like closing the gate after the horse has bolted.
那无异于马后炮。
He is playing on the swings outside.
他正在外面荡秋千。
OK, listen carefully, please.
好，请仔细听着。