They can place their orders online.

他们可以在网上下订单。

What do you use for collaborating with others online?

你在网上是用什么来同别人协作呢？

Online learning helps us reach out to new friends.

网络学习使我们结交新朋友。

Time flies when you are online.

上网的时候时间过得飞快。

Take an online class.

在网上听一门课程。

Many people find online shopping very convenient.

很多人都认为网上购物非常方便。

Say I have an online resource that I want you to symbolically pay for. 。

比如，我有一个在线资源，希望您能象征性地为其付出代价。

You can chat to other people who are online.

你可以与其他在线的人聊天。