When you purchase content from Amazon, it is stored in the cloud where it can be accessed anywhere. If you are planning on being offline—for example, a long flight—download any content you wish to view offline. Click the Cloud button at the top of the screen, and download your cloud-based content. You can transfer a variety of content types to your Kindle Fire via its micro-USB connector, including music, videos, photos, and documents. To transfer content from your computer to your Kindle Fire, do the following:  Connect your Kindle Fire to your computer with a micro-USB cable. Slide the on-screen arrow from right to left to unlock your Kindle. Open the Kindle Fire drive on your computer. Your Kindle Fire will appear as an external storage drive or volume on the computer’s desktop. Note that Kindle Fire is not usable as a device while connected to your computer as a storage drive or volume. Drag and drop your content into the applicable content folder, such as Music or Pictures. When you are done transferring files, press the Disconnect button at the bottom of the Kindle Fire screen and eject it from your computer, then unplug the USB cable. Note that USB transfers to the Kindle Fire can be slow, so patience is recommended. To delete a title from your Kindle Fire, press and hold the icon to display a contextual menu, and select Remove from Device. Personal content will be completely deleted. Content purchased from Amazon will remain in the Amazon Cloud, should you later wish to retrieve it.

How would you rephrase that briefly using Chinese?
从Cloud上下载。 导入内容。 删除内容。