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德国国籍法规定的7种自动丧失德国国籍的原因，您可以用谷歌翻译：
Verlust durch Annahme einer fremden Staatsangehörigkeit.
Verlust durch Auslandsaufenthalt vor 1914.
Verlust durch Adoption.
Verlust durch Eintritt in fremde Streitkräfte.
Verlust durch Legitimation.
Verlust durch Eheschließung.
Verlust durch Verzicht.
第一条就是“获得了其它国家国籍”
据我所知，针对第一条有两种例外：
1. 事先提出了“保留德国国籍申请”病获得批准
2."容忍"获得其它欧盟国家或瑞士国籍时不自动取消德国国籍 [1评]
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德国要求的是入籍者放弃原国籍
并没有剥夺入籍他国的德国人的国籍
实德国允许你入籍他国保留德国籍
申请程序如下:
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Getting German Dual Citizenship When Living in Another Country
To get a second nationality in addition to your German citizenship, you have to get permission from the German government. You have to submit an application for a retention permit and explain why you want to obtain second citizenship and how it will benefit you.
Here’s how to apply for a retention permit:
Download the application form. Find the application form for a retention permit on the German Federal Office website and download it. Then, fill out your details and the required information.
Get your documents prepared. For your permit, you need to prepare the documents listed below:
Your national passport and ID.
Residence card from your other country (if applicable).
Proof of how the second citizenship will benefit you (evidence of scholarships, economic benefits, tax benefits, etc.).
Evidence that you still have a strong connection to Germany, i.e., you have family/friends there, or you have a business or property in Germany.
Apply for the retention permit. If you are applying for your retention permit outside of Germany, you have to submit your application to a local German authority. Then, your application will be reviewed by the Federal Office. But, if you are in Germany, you have to apply via a local office in your region/municipality.
After you apply: If your application is approved, you will receive a retention certificate, which will prove your dual citizenship. The Federal Office will send the certificate to your local mission abroad. You have to pay a fee of EUR 255 for your retention permit.
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德国政府官网有关德国双国籍的说明
https://www.germany-visa.org/german-citizenship/dual-citizenship/#:~:text=In%20principle%2C%20Germany%20does%20not%20allow%20dual%20citizenship.
是允许保留双国籍的
只是需要申请
Getting German Dual Citizenship When Living in Another Country
在其他国家的德国人怎样获得双重国籍
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To get a second nationality in addition to your German citizenship, you have to get permission from the German government. You have to submit an application for a retention permit and explain why you want to obtain second citizenship and how it will benefit you.
Here’s how to apply for a retention permit:
Download the application form. Find the application form for a retention permit on the German Federal Office website and download it. Then, fill out your details and the required information.
Get your documents prepared. For your permit, you need to prepare the documents listed below:
Your national passport and ID.
Residence card from your other country (if applicable).
Proof of how the second citizenship will benefit you (evidence of scholarships, economic benefits, tax benefits, etc.).
Evidence that you still have a strong connection to Germany, i.e., you have family/friends there, or you have a business or property in Germany.
Apply for the retention permit. If you are applying for your retention permit outside of Germany, you have to submit your application to a local German authority. Then, your application will be reviewed by the Federal Office. But, if you are in Germany, you have to apply via a local office in your region/municipality.
After you apply: If your application is approved, you will receive a retention certificate, which will prove your dual citizenship. The Federal Office will send the certificate to your local mission abroad. You have to pay a fee of EUR 255 for your retention permit.
保留德国籍的申请很简单
主要提供两方面内容
Proof of how the second citizenship will benefit you (evidence of scholarships, economic benefits, tax benefits, etc.).
Evidence that you still have a strong connection to Germany, i.e., you have family/friends there, or you have a business or property in Germany.
第一证明你在国外有经济利益，工作学习税务
第二证明你和德国有关系，有亲属朋友或者商业往来即可
物是人非事事休，欲语泪先流。"
人的一生中，总会经历各种喜悦和痛苦，而睹物思人，可能是最难受的一瞬间。一个人面对旧物时，那些久远的记忆和过往的情感会涌上心头，使人感慨万千。
近日,浙江温州，一位华侨回国为国外出生的孩子办理登记户口，在拿到新户口的一瞬间，男子曾经的经历，一瞬间涌上心头。
消失的两页纸是他一生的牵挂
浙江温州，华侨黄先生回到故乡故乡。他此行的目的是为了给在国外出生的孩子登记户口。
走进派出所，黄先生递上了“年久失修”的户口簿。民警在检查过程中发现，这本褪色的旧户口簿已破损不堪。
在经过黄先生的同意后，民警为他更换一本新的户口簿。这本新户口簿，虽然整洁明亮，却也是一次时代的更迭。
黄先生接过新户口簿，他的目光首先被孩子名字吸引。但很快，他的眼神黯淡下来。
因为他发现了一个让他心痛的事实：在这本新的户口簿上，他的父亲和祖父的名字不见了。
仿佛在这一刻，他们真的彻底离他而去了。
黄先生的眼眶湿润了。他的泪水，不仅是因为思念，更是因为那份被时间抹去的亲情。
民警看到这一幕，心中也感到一阵酸楚。他们安抚着黄先生，同时将旧户口簿盖上了作废章，交还给他，作为一种特殊的纪念。
黄先生紧紧抓着那本旧户口簿，久久不愿放手。他凝视着父亲和祖父的名字，那些字迹仿佛带他穿越了时空，回到了过去温馨而又遥远的日子。
那是一个充满了爱与教诲的时光，是他永远珍藏在心底的宝贵记忆。
网友泪目了
虽然这只是一件小事，但对于黄先生来讲，却有着非凡的意义。它不仅仅是关于户口登记的过程，更是一次深刻的家庭与个人历史的回顾。而这样的经历，或许是每个人都逃不掉的经历
看到一些网友的评论，泪水不挣钱的流了下来
到了这个年纪，要习惯人生做减法了
不得已更新户口信息，换了新的户口!看着工作人员要收回旧户口,瞬间泪崩!含泪说:麻烦您，能将旧户口还给我吗？因为，上面有妈妈名字！个门介她还给了我!我坐在旁边的椅子上哭了很久!
我感触了，以前外婆在世的时候没有好好的多陪陪她，多陪她说说话，在世的时候就总说怎么死死不掉，死了就送去火化了，23年十月份她离世了，送去火化了，从此再也听不到外婆碎碎念里的关心和想念时的电话了，外婆我想你了，外婆离世前最放心不下的就是我的妈妈，她的小女儿，看到这个视频，我突如其来的心酸和害怕
泪水，不仅仅是对亲人的思念，更是对逝去的时间、变迁的岁月和那些无法重返的美好回忆的缅怀从网友们的感悟，我们不难发现一种深沉而普遍的情感共鸣。
每个人的生命中都有那么一本“户口簿”，承载着家族的记忆、亲情的链接和个人的身份认同。
当这些记忆因时间的流逝而逐渐模糊，甚至在某些瞬间消失，那种失落感和哀伤是难以言喻的。
这种情感的流露，触动了我们每个人内心深处的某个角落。我们都有着类似的经历，无论是一张老照片、一本旧日记，还是家中的某个老物件，都能唤起我们对过去的温暖回忆和对逝去亲人的深切思念。
在现代社会这个快速变化的时代，我们常常被各种事务和生活的节奏所占据，以至于忘记了回望那些构成我们今天的过去。
但无论生活怎样繁忙与复杂，我们都不应忘记那些曾给予我们爱与支持的亲人。他们虽然不在身边，但在我们的心中，他们的影响和记忆是永恒的。