最近在WTG的WSL(1)上执行sudo apt update报错：E: Failed to fetch store:/var/lib/apt/lists/partial/mirrors.aliyun.com_ubuntu_dists_focal-proposed_restricted_cnf_Commands-amd64 Hash Sum mismatch 上网翻了翻是因为文件意外被修改导致MD5值不一致，网上有说是Great Firewall of Celestial Dynasty...