You can't add this user as an admin because they are not a member of this group and you are not allowed to add them.
116
Applied
抱歉，您无法将此成员设为管理员。 因为此成员不是此群组的成员，且您也无权邀请此成员。
42/116
@无心,
Aug 14, 2023 at 03:01
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