twilight

twilight
[ˈtwʌɪlʌɪt]
noun
  1. [mass noun]the soft glowing light from the sky when the sun is below the horizon, caused by the reflection of the sun's rays from the atmosphere
    暮光;曙光
    ■the period of the evening during which this takes place, between daylight and darkness
    黄昏
    a pleasant walk in the woods at twilight.
    黄昏时美好的林中散步。
    ■[in sing.](figurative)a period or state of obscurity, ambiguity, or gradual decline
    (喻)朦胧时期,模糊时期,衰落时期;朦胧状态,模糊状态,衰落状态
    he was in the twilight of his career.
    他处于事业的晚期。
语源
  1. late Middle English: from Old English twi- 'two' (used in an obscure sense in this compound) + light
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