Like 和 As 有什么区别？如果难以说明的话，请教我一下例句。

This a very complicated (hard) question I often see. It is very hard to upright tell the difference, it’s something you learn as you go.
“She was like a cheetah” / “She was as fast as a cheetah”
“It was as bright as the sun” / “It was like the brightness of the sun”