file protect ringfile protection devicefile protection ring文件保护: file protection环: ring; hoop全文件保护: full file protection文件保护: ffile protect; file protection无文件保护: not file protection下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:文件保护环，即可在微信中查询翻译
