【明報專訊】"The weatherman said today is the hottest day of the year, but you look as cool as mint," Timothy's wife said. (As) cool as mint means to be comfortably cool ( 涼的 ) on a warm day - but it can also mean to be calm ( 鎮靜的 ) and relaxed ( 放鬆的 ), particularly in a difficult situation. "Even when the cat's chasing ( 追逐 ) him, Timothy remains cool as mint."