How to set the language for Google Assistant when using the Xiaomi Watch 2?

Google Assistant is a virtual assistant designed to help you perform a wide range of tasks, providing convenience and information.
To set the language for Google Assistant, please refer to the following:
Press and hold the [Assistant] APP on your phone >> navigate to [Settings] >> tap [Languages] to choose the language for speaking to digital assistants from Google.
To ensure you have the latest version of Google Assistant, you can check in the following steps:
Open the [Play Store] APP >> tap the Google Account icon >> [Manage apps & device] >> [Manage] >> [Updates available]. If the Google Assistant APP is in the following list, please tap it and start updating.
The Google Assistant support for the following languages:
da-DK / de-AT / de-BE / de-CH / de-DE / en-AT / en-AU / en-CA / en-GB / en-IE / en-IN / en-SG / en-US / es-ES / es-US / fr-BE / fr-CA / fr-CH / fr-FR / hi-IN / it-IT / ja-JP / ko-KR / nl-NL / no-NO / pt-PT / sv-SE / zh-Hant-TW / zh-TW