at present与right now的区别谢谢了,

at present与right now的区别谢谢了, right now和at present分别是什么意思? At present 与now 与right now 与 at the moment 有什么区别?或是说搭配在句子的位置有什么区别? .just now right away at present at that moment的区别 right now,at present,译成汉语是什么意思,在句中用什么时态? right now与right at once right now at the moment & now & at present 是什么? at the present time ,at present ,now的区别` at present 与 for the present 区别 at once ,right now,right away和now的区别 at now等于at the moment 等于at present么 at present=now?at present=now吗?皆可在句末做时间状语? right away 与right now 怎么区别? at the present time与at present 的区别 just now与right now区别是什么? just now与right now区别是什么? right now与now区别如题