darken
🇺🇸
/ˈdɑːrkən/
🇬🇧
/ˈdɑːkən/
to become dark or make something dark
The sky began to darken as the storm approached.
隨著暴風雨的臨近,天空開始變暗。
to become unhappy or angry, or make someone unhappy or angry
His expression started to darken when he heard the bad news.
當他聽到這個壞消息時,他的表情開始變得陰沉。