单词学习：dusk 名词/时间
dusk
/dʌsk/
黄昏，薄暮
As dusk fell, Mr. Gu turned on the lights in the classroom and continued his lecture.
黄昏降临，顾老师打开了教室的灯，继续他的讲座。
单词卡片
卡片已就绪
