But one big difference is how the company will sell it. The release is download-only.
但最大的不同是苹果公司的销售方式，这个新版本操作系统只能通过下载方式获得。
2
Don't worry, it will downloadonly once, not three times!
不要担心，将仅仅下载一次，而不会下载三次！
3
For example, you can use it to download links, images and objects from web pages, create special filters to downloadonly some files and rename them on the fly.