You might let your calling program know (through a non-interruptive approach) that an E-mail address might be missing.

您必须通知(通过一个不会产生中断的方法)调用程序，一个邮件地址将要丢失。

youdao

Any missing address information can be updated through the application's second option - update phonebook.

任何遗漏的地址信息可以在应用程序的第二个选项中更新- - -更新通讯录。

youdao

The manual update is a required step in the migration project to address the missing features that automatic conversion can not fulfill. There are a few steps required.

手动更新是迁移项目中的必要步骤，它用于解决自动转换无法实现的缺失功能。

youdao

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