决定是否要用外接鼠标。 准备一个带有双按钮或者具有双按钮功能的鼠标。 连接鼠标

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Heavy Excel users and others may prefer an external mouse. This is probably a mouse from a Windows PC.  You may find it not as attractive to have a Windows mouse with your new MacBook, but it is practical. You can also use a Mac-branded option like the Magic Mouse. The Magic Mouse has a Secondary Click option available in the System Preferences. When enabled, this allows you to right-click just like on any other mouse. . Plug that mouse into your USB on the Macbook or connect via Bluetooth, and