If you use the line for more than six seconds, the minimum charge is one minute.
如果您使用电话线路超过6秒钟，最低的费用是按一分钟计算的。
Your message contains only 10 words, but the minimum charge is 22, so it's cheaper to send it by ordinary.
你的电文仅10个字，但起码要按22字收费，所以还是发普通电报便宜。
The minimum charge for each telegram is fifteen words.
每张电报最少付十五字的费用。
The minimum charge for each telegram is fifteen words.
每张电报最少付十五字的费用。
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