NOT TILL LATER 意思是不會太晚
not until later:句型1.It was not until sb1 did...that sb2 did...
eg. It was not until you came back that I went to bed.知道你回來我才去睡覺.
句型2(為句型1的倒裝句)Not until sb1 did...,did sb2 do...
eg. Not until you came back,did I go to bed.
再如,It was not until midnight that I fall asleep.
Not until midnight did I fall asleep.
句型3,這個句型比較簡單,也是最口語化的
主語+didn't+do+until...
eg.I didn't fall asleep until midnight.
I didn't go to bed until you came back
希望能幫到你!