询问他们的主要联系方式，是私人电话还是办公室电话，或者他们更情愿通过邮件的形式联系。

Ask for their preferred means of contact, whether it is by personal or office phone, or if they would rather be contacted via E-mail.

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一个掌握了便捷联系方式的执行官可以使用网上声讯服务去拨打任意数量的免费电话。但是对于贫苦的农民，即使他们有电话的话，也要付高费用。

The well-connected executive can use any number of voice-over-internet services to make free calls; but the rural poor, if they have phones at all, must pay high rates.

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几个月来，他经常改变联系方式，电话也常常由身边的随行人员代为接听。

For months, he has regularly changed cellphones, and had members of his close-knit entourage answer them for him.

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