Shops use computers at their checkouts. The tills use computers to scan the things you want to buy. They add it all up and work out how much change to give.
With a computer, you can connect with students from classrooms in different countries, to learn about their culture and community. You can also work on a project with someone without needing to be ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果