单词	歌咏活动
释义	歌咏活动 singing
随便看	single-path system single pathway single-patient single patient dialysis unit single patient haemodialysis equipment single pattern single-pattern-matching single pattern photomask single pawn singlepayer single-payer Single Payer Plan Single-Payer Plan Single-Payer Plans Single Payer System Single-Payer System Single-Payer Systems single payment single payment annuity single-payment annuity single payment compound amount computation single payment compound-amount factor single-payment compound amount factor single-payment factors single-payment life