swap-on-the-fly

常見例句

• The bird caught a bug on the fly.
  那鳥在飛行中捉住了一只昆蟲。
• Housework keeps mother on the fly all day.
  家務勞動使母親整天忙忙碌碌。
• The housekeeper of our school is always on the fly.
  學校管理員整天忙得很。
• Do you run through each day on the fly ?
  你的日子是不是像飛一樣的跑過你的眼前?
• The laws were being changed on the fly.
  法律在執(zhí)行過程中被改變了。
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