Do many neighboring countries have to bind mobile phones?

No, Duolingo is a language learning tool software, and its App has been downloaded more than 500 million times. The software is not registered, and anyone needs to register any mobile phone number, so Duolingo is not only registered at 86. Many neighboring countries were established in Pittsburgh, USA.

Just add it when you register in official website. Register with your mobile phone number or QQ number, and then enter the verification code. After the input is passed, you can register the mailbox. The Multi-Neighboring Countries English Test is an English test platform that can be completed in China, providing language proficiency proof for students who have plans to study abroad.

Log in through someone else's mobile phone number. Multi-Neighboring Country is an Internet company established in the United States, which is committed to bringing free language education to the whole world. The level of many neighboring countries is equivalent to level 4. If you want to log in to other people's neighboring countries, you need their mobile phone number to receive the verification code to log in.

Enter the mobile phone to study together, and click My Options. Click on the setting options below. Click the account and security options above. Click on the mobile phone number option above. Click above to change the mobile phone number. Enter the verification code to change the bound mobile phone number.