twilight /ˈtwaɪˌlaɪt/ noun Learner's definition of TWILIGHT
1 [noncount]
a : the light from the sky at the end of the day when night is just beginning暮光 b : the period when day is ending and night is beginning黄昏 —
often used before another noun常用于另一名词前 2
[singular] : a period when something is ending晚期;衰落时期 —
often used before another noun常用于另一名词前