top-up

美 [ˈtɒpʌp]
  • n.补充的饮料;追加款项
  • v.补充;充值
  • adj.额外的
  • 网络专升本;专升本课程;完就充值

复数:top-ups

top-uptop-up

top-up

n.

1.附加付款a payment that you make to increase the amount of money, etc. to the level that is needed

2.(informal)(重新斟满杯子的)补充饮料an amount of a drink that you add to a cup or glass in order to fill it again

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