keep away from,stay away from离得远远的,不同
如:
keep away from the doors while the train is moving
列车运行过程中要离得远远的车门。
Do you think we teenagers should keep away from the Internet?
你觉得大家青少年应该离得远远的互联网吗?
两个基本没什么不同,可以互换。keep away from 多见于英国英语,stay away from 多见于美国英语。