[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
late Middle English: from Old English twi- 'two' (used in an obscure sense in this compound) + light