"Running and Guard Rails"是啥意思?急用!

RUBY on rails 中RAILS是啥意思 running running running running running running running 的意思是 ruby and rails是什么 running man是啥意思? running water是啥意思? Running water is never stale and a door 啥意思? guard的意思 英语的off and running什么意思 请问running a house is a lot like running abusiness 是啥意思 奇观是啥意思?急用!急用! guard I can into An An angel to guard you and give your happiness是