his father is on__business every___few weeks,为什么用/,/

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hisfatherison__businessevery___fewweeks,为什么用/,/hisfatherison__businessevery___fewweeks,为什么用/,/hisfat

his father is on__business every___few weeks,为什么用/,/
his father is on__business every___few weeks,为什么用/,/

his father is on__business every___few weeks,为什么用/,/
on business 是出差,every few weeks 是每隔几周.