付费 fùfèi HSK7 pay Definitions Defs Origin Strokes Stroke Words Sentences Sents 付费墙 fùfèiqiáng paywall (computing) paywall (loanword)对方付费电话 duìfāngfùfèidiànhuà collect call a telephone call paid for by the person receiving it点击付费广告 diǎnjīfùfèiguǎnggào pay-per-click pay-per-click advertising