mean·time /ˈminˌtaɪm/
  此際,其時(ad.)其間
  Mean·time, Mean·while, adv. In the intervening time; during the interval.
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  Mean·time Mean·while n. The intervening time; as, in the meantime (or mean time).
  meantime
       adv : during the intervening time; "meanwhile I will not think
             about the problem"; "meantime he was attentive to his
             other interests"; "in the meantime the police were
             notified" [syn: meanwhile, in the meantime]