n (1) 黎明，破(拂)晓(time of day when light first appears in the sky; daybreak) [U，C]：rise/start at～黎明时分起床/动身;at(the) break of～在破晓时分;at the crack of～在一清早;wake in the grey～在朦朦的黎明时分醒来;It's almost～. 天就要破晓了。The～was breaking over the city. 那座城市天正破晓。the first faint light of～黎明时最初的暗淡晨光;from～till dusk(dark)从早到晚;The～s in the mountains are beautiful.山区的黎明是很美的。〖同〗daybreak;

(2) 开端，曙光(the very beginning of sth; first appearance or signs of sth) [C， the～][N(of)](fig)：the～of hope/history/civilization 希望的曙光/历史的开端/文明的开始; the～of a new age/era/life 新时代/新纪元/新生活的开端; before the～of re-corded history有文字记载的历史(开端)之前;the～of another day 另一天的开始;〖同〗beginning， birth， rise， start;

vi(1) 破晓((of daylight)begin to appear just before the sun rises) [I]：It/The morning～ed (bright/clear/cloudless). 天破晓了/早晨开始了(天空明亮/清澈/无云)。Day～s in the east. 东方破晓，一天开始了。A new day has～ed. 新的一天开始了。

(2) 明晰(清楚)起来(gradually become clear to sb's mind; become evident to sb) [I， I+prep(on)]：The truth/solution/sense began to～on him. 事实真相/解决办法/意思开始在他脑中明晰起来。It(suddenly/finally)～ed(on him)that she was serious/what she had meant.(他)(突然/终于)清楚了她是认真的/她是什么意思。〖同〗occur，strike;

(3) 开始(begin to happen or develop) [I]：The space age～ed in the twentieth century. 宇航时代始于20世纪。A new age for mankind is～ing.人类的新时代正在开始。〖同〗begin，appear，rise