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Name: Houwang VPN for China
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科学上网名：Slack

Slack 是集聊天群组、大规模工具集成、文件整合和统一搜索于一体的平台。它将电子邮件、短信、Google Drives、Twitter、Trello、Asana、GitHub 等 65 种工具和服务整合到一个平台上。