1. You can chat to other people who are online.

2. An online office mixer is a great way to network.

3. Recently, she bought a gas heater online!

4. Vista should be easier to update online.

5. I can search useful information online.

6. He chats with me online.

7. You may use an online printer to print out the data.

8. For netmeeting instructions refer to microsoft's documentation or online help.

9. She goes online at home on the weekend.

10. go online：这是一个更简洁的说法，意为“上网”，常用于描述连接互联网或开始在线活动的行为｡

11. be online：表示某人或某物当前处于在线状态，例如，“He is online now, you can chat with him.”

希望这些例句能帮助你更好地理解和使用"online"这个单词。