Definition: bought, used, etc. using the Internet Level: A2
我在线订购了它们。
I ordered them ___online.
你为什么不上网看看能找到什么？
Why don't you go ___online and see what you can find?
当我们回家后，我上网查看了我的电子邮件。
When we went back home, I went ___online and checked my e-mails.
