煮到全熟的蛋
這一組就是字面的畫面本身，也是這個字最常出現的地方。
adjective · B1
A hard-boiled egg has been cooked in boiling water long enough for both the white and the yellow middle to become firm all the way through.
全熟的（水煮蛋）
核心畫面
Think of an egg left in boiling water for ten minutes. It goes in with a soft, running middle and comes out solid all the way through, so you can slice it and nothing spills. Nothing was added to it; the heat and the time did all of it. That firm, closed middle is the picture the whole word is built on.
可以想成一顆蛋在滾水裡待了十分鐘：下鍋時裡面還是軟的、會流，撈起來已經整顆變實，切開也不會流出來。沒有加任何東西進去…更多收起
可以想成一顆蛋在滾水裡待了十分鐘：下鍋時裡面還是軟的、會流，撈起來已經整顆變實，切開也不會流出來。沒有加任何東西進去，是熱和時間把它變成這樣的。那個「裡面變硬、封起來了」的畫面，就是這個字所有意思的起點。Two branches
被煮硬的人和故事
同一個畫面換成人：本來會流出來的東西，現在留在裡面不外洩。這是觀念上的連結，用來幫忙記，不是說這個意思在歷史上由蛋演變而來。
adjective · B2
Someone who is hard-boiled does not show soft feelings, and does not let feelings change what they decide to do. They are tough, direct, and not easy to shock.
冷硬的；不動感情的