让他们几乎全部收随付流水用法(即以每分钟计算)，但有些也提供无限电话计划每月收费低一些目的地。
Almost all of them allow for pay-as-you-go usage (i. e., on a per minute basis) however some also offer unlimited calling plans to certain destinations for a low monthly fee.
计算这两个日期之间的差(以分钟为单位)，然后使用您所输入的单词数(由中间的命令输出)除以这个值，以得到平均每分钟输入的单词数。
Take the difference in minutes between the two dates and divide by the number of words you typed (which is output by the middle command) to get the average number of words per minute you type.
不同国家有不同收费，以每分钟收费，不足一分钟以一分钟计算。
Different countries have different fees, charges per minute, less than one minute by one minute.
不同国家有不同收费，以每分钟收费，不足一分钟以一分钟计算。
Different countries have different fees, charges per minute, less than one minute by one minute.
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