If a person has left a channel in the past, you need to be in their Telegram contacts to add them back.
They can still join via an invite link as long as they are not on the Removed Users list.
194
抱歉，如果有人退出了頻道，只有互為聯絡人的人可以把他們帶回（他們要有您的手機號碼，而您有他們的）。
49/194
🌸 𝓚𝓲𝓽𝓽𝔂 ℂ𝕒𝕥 🌸 🇭🇰🇯🇵🇹🇼🇱🇷🇰🇷,
Dec 15, 2018 at 06:14