top up a phone, spend some time offline, check the internet connection, download videos from youtube, use an old desktop computer, keep in touch with people, upload songs to a website, record a song on a computer, get a virus on a computer, use social networking sites, follow somebody on twitter, send instant messages to friends, share files with other people, download programs from a website, connect a microphone to a computer

using technology (Unit 4)

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？