20％ off

20％ off 20%OFF什么意思 板卡上面左边三位是波特率 on off off 就是19200 右边六位是硬件地址请教该板卡第12 13 14 15 16 17 18 19 20 块得地址,新手~第一块地址为ON OFF OFF OFF OFF OFF OFF OFF OFF 第二块地址为ON OFF OFF OFF OFF OFF OFF off OFF, assemble 3 off M3*20 screw and 3 off 其中off作何解释? at x% off the 例如：at 20% off the price 是减少20%还是减少80%? 在香港买衣服时常看到折扣后面加一个off,比喻：20%off keep off take off peace off?fuck off? for what price 20 percent off the same as 20 dollars?for what price is 20 percent off the same as 20 dollars off nknock 20% off与knock 20% off the price有差别么?nknock 20% off可以单独使用么?还是必须加上后面的the price? The shop keeper knocks 20% off the bill.何意 kick off power off piss off off job put off,turn off,set off,take off的区别?