一会儿，片刻，转眼间

1. a (short) time, a while, moment

noun (common) (futsuumeishi) word usually written using kana alone

有一次（过去），一段时期，从前

2. one time (in the past), a period, former times

adverb (fukushi) noun (common) (futsuumeishi) word usually written using kana alone

3. two-hour period

noun (common) (futsuumeishi) archaic