Set preferred number: select a number for each contact which will appear at the top of detailed contact list.

设置首选号码：选择一个号码，每次接触会出现在顶部的详细联络名单。

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The transformation also extracts the telephone number with the preferred attribute set to true as shown in Listing 2 .

该转换还提取那些 preferred 属性被设置为 true 的电话号码，如 清单 2 所示。

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The new investors may buy convertible preferred securities, that is, bond-like equity with an option to change to a set number of common shares at an established price and at an exercise date in the future.

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