safety 和safe各是什么词性?

safety 和safe各是什么词性? 谁知道safety,safe的反义词和fireman的复数是什么? 这里的saved和safe是什么词性? safe和safety的区别?急, 我虽然英语很好但我想问个关于词性的问题；【Lucky] luckily,luck, safe,safety,safely,都分别是什么词 safe and sound中的safe是什么意思更正：是什么词性？ you come back safe to me 中的safe 是什么词性 keep safety和keep safe有什么区别? a safe place 和a safety place 都对吗 a place of safety?a place of safety 这是什么用法?为什么用safety 而不用safe? safe,safetly,safety,save造句 safe;safely;safety的区别 I would like to open a ( ) account at your bank.A:safe B:savingC:savings D:safety这里答案是什么?B和C什么区别? a safe place 和a safety place 都对吗可是我还看到a safety place 这个表达对吗谢谢 Did you do everything to keep yourself_____at that time?safe 和 safety 二选一 safe safety的区别,怎么用 We should keep _____from dangerA us safe B ourselves safety C us safety D ourselves safe safe与safety区别另外,应该讲safe place,还是safety place?