Article in English: Macs don't have Ethernet ports anymore, but you can purchase a USB Ethernet plug-in item that attaches to one of your Mac's USB ports. Do so by plugging the USB sides of the adapters into the respective Macs. Plug one end of the Ethernet cable into the adapter for your Mac desktop, then plug the other end of the cable into the adapter for your Mac laptop. It's at the top of the screen. A drop-down menu will appear. If you don't see Go here, open Finder or click the desktop to make it appear. It's in the Go drop-down menu. This option is at the bottom of the Connect to Server window. Doing so brings up the connection window. If you don't know the laptop's name, go to that computer and open the Apple menu, click System Preferences..., click Network, and note the computer's name there. Make sure that you type in the password for the computer to which you're connecting. Click the blue face-like icon in your Mac's dock. Find the files that you want to move, select them, click Edit, and click Copy in the drop-down menu. It's in the lower-left side of the Finder window. Double-click one of the laptop's folders in the Finder window, then click Edit and click Paste Items in the drop-down menu. This will move the files from your desktop onto your laptop. You can also move files from the laptop onto your desktop in this way.

Summary in Chinese:
购买两个USB-C接口的以太网适配器。 将适配器连接到Mac电脑。 用以太网电缆连接两台电脑。 点击台式机上的前往（Go）。 点击连接服务器。 点击浏览。 双击笔记本电脑名称。 输入密码，点击连接。 打开Finder。 选中要转移到笔记本电脑的文件。 点击Finder窗口左下方的笔记本电脑名称。 转移已经复制的文件。