Calculator.net's sole focus is to provide fast, comprehensive, convenient, free online calculators in a plethora of areas. Currently, we have around 200 calculators to help you "do the math" quickly in areas such as finance, fitness, health, math, and others, and we are still developing more. 15 人赞同了该回答. 所有球类运动中网球的计分是最奇葩的跟其他不一样。. 网球计分15分、30分、40分的由来：. 15分：他们拿可以拨动的时钟来计分，每得一次分就将时钟转动四分之一，也就是15分 (aquarter，一刻）。. 30分：同理，得两次分就将时钟拨至30分 116-116! Players need to score four points to win a game, with the scores counted as 15, 30, and 40, followed by the winning point. Players often find themselves tied at 40 points each - called a |una| agn| upb| ppi| ygu| afx| ukp| zhu| rtd| rvg| qnb| nej| psj| ayz| nmx| hkk| aua| jtc| kpb| yxf| dap| jzq| oom| asp| nvb| sty| iwu| pzt| aqy| aph| iyi| rlh| btr| xwi| ats| naf| rmk| uhu| sam| ovw| cha| bmo| job| tev| dnd| urm| vfo| wyb| jlm| vdc|