爱华网（till多用于口语; until通常用于句首)
until =till ---conj up to the time when 直到...时（为止）
Wait until the rain stops.
等到雨停了再说吧.
Don't leave till I arrive.
我不来你不要离开.
Continue in this direction until you see a sign.
一直朝着这个方向走就看见指示牌了.
Until she spoke I hadn't realized she was foreign.
她要不说话我还一直不知道她是外国人.
I won't stop shouting until you let me go.
你不放我走我就一直喊叫.
until =till---prep (a) up to (a specified time) 直到（某一时刻）
Let's wait until tomorrow.
让我们等到明天吧。
It may last till Friday.
这可能要延续到星期五.
Nothing happened until 5 o'clock.
五点钟以前没有出现任何迹象.
The street is full of traffic from morning till night.
这条街从早到晚行人车辆很多.
Until now I have always lived alone.
我一直独自生活至今.
I'd like to stay here up until Christmas.
我想在这儿呆到圣诞节.
(b) up to the time of (a specified event) 直到（发生某事）:
The secret was never told until after the old man's death.
这个秘密在老人去世后才说出来.
Don't open it till your birthday.
等到你过生日那天再打开.
She was a bank clerk until the war, when she trained as anurse.
她战前是个银行职员, 战时受训当了护士.
I will wait here until the concert is over.
我将一直在这儿等到音乐会结束。
Until he returns, nothing can be done.
他不回来什么也不能做。
Go straight on until you come to a large building.
一直往前走, 直到你走到一座大楼。
Until then, I knew nothing at all about it.在那时以前, 我对这事一无所知。
He continued working up until his death.
Tom waited until she had finished speaking.
Until recently, Anna worked as a teacher in Japan.
The traffic laws don't take effect until the end of theyear.
### It was not until …that…强调句结构
It was not until yesterday that I noticed it.
直到昨天，我才注意到这件事。
It was not until midnight that he went back home after theexperiment
直到半夜，他才在实验后回到了家。
It was not until yesterday that we got to know the accident.
直到昨天，我们才了解到该起事故。
It was not until 1972 that the war finally came to an end.
It was not until 1911 that he returned home from Italy.
It was not until last year that they owned a car.
It was not until she spoke that I had realized she wasn'tEnglish.
It is not until you’ve done your homework that you can go outand play.
It was not until she arrived in class that she realized she hadforgotten her book.
It was not until dark that she realized it was too late to gohome.
It was not until she took off her dark glasses that I found shewas a film star.
It was not until recently ________ we learned Tracy would marrythe politician.
A.whenB.whatC.that D. which
