(of a person's facial expression or mood) to suddenly become unhappy, worried, or troubled
どんよりとなる
(of bodies of water or other surfaces) to become completely covered or blocked with ice due to extremely cold temperatures
完全に凍結する
to show excessive or unnecessary concern, care, or attention to someone or something
過度に気を使う
to recover from an unpleasant or unhappy experience, particularly an illness
回復する
(of a threat, problem, concern, etc.) to exist and create a sense of worry or uncertainty about what will happen
圧迫する
(of wounds) to slowly grow new skin over the injured area as part of the healing process
治癒する
to significantly transform the appearance of something to update, enhance, or modernize its look
イメチェンする
to have a thin layer of mist or water droplets cover a surface, creating a hazy or obscured appearance
霧がかかる