Meet French NGO TELEcoms Sans Frontiers( Telecommunications without borders).Its goal is to use mobile communication technology to help people in need.TSF began in 1998.是什么意思_Meet French NGO TELEcoms Sans Frontiers( Telecommunications without borders).Its goal is to use mobile communication technology to help people in need.TSF began in 1998.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句