to·night /təˈnaɪt/
  今晚,今夜(ad.)今晚,今夜
  To·night adv.
  1. On this present or coming night.
  2. On the last night past. [Obs.]
  To·night, n. The present or the coming night; the night after the present day.
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  tonight
       n : the present or immediately coming night
       adv : during the night of the present day; "drop by tonight" [syn:
              this evening, this night]