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飞秒
fēi​miǎo

femtosecond

Definitions Defs Origin Strokes Stroke Words Sentences Sents
  1. 飞 飛 fēi verbadverb
    swiftly
    to move at high speed
  2. 秒 miǎo nounmeasure word
    second
    measure word for time equal to 1/60th of a minute