but up till now啥意思

but up till now啥意思 up till now 的意思和用法 up till now up till now的意思及造句是? Up till now有这种说法吗?Up till now是不是等于Up to now? up till now 与up to now区别 up to now和up till now有什么区别 up till now和up to now的区别jiji up to now 和 up till now 的区别up to now和up till now的区别. up till now/up until now/up to now这三个用法有什么区别求解 but he is up and about now的意思 till（up to ）now 的用法及造句是? up till now ,he never --(lend)me anything怎么填 up till till now ,up to now,so far一样吗 用在什么时态? I admit I was like you. But now, I decided to give up you,什么意思? 求UP TILL NOW 的详细用法.它是否必须和BEFORE连用?EG:UP TILL NOW,I HAVE NEVER BEEN ABROAD BEFORE. up to now什么意思?