in the air 在空中；在流传中；渺茫
We can see many molecules flying in the air when a sunbeam penetrated the dark room.
There is a nip in the air today.
in the balance （决定、结果、前途等）不能确定的，尚未决定的
The future of this project is (hanging) in the balance.
The fate of the African wild dog hangs in the balance.
in the beginning 起初，在开始时
He disliked it in the beginning.
In the beginning I lived next to her.
【注】也可说 at the beginning。
in the circumstances 在此情况下
I had to give up my attempt in the circumstances.
Under the circumstances, there is little hope for an early settlement.
【注】也可说under the circumstances
in the dark 在黑暗中；全然不知
Cats can see in the dark.
All the lights went out and we were left in the dark.
【注】表示“在黑暗中”时，in the dark 也可换成 in the darkness。
in the distance 在远处，在很远的那边
We saw a light in the distance.
I made out three figures moving in the distance.
in the end 最后，终于
We looked everywhere and, in the end, we found the key.
We talked and talked about where to go and stayed at home in the end.
in the event 结果，到头来
We were afraid he would be nervous on stage, but in the event he performed beautifully.
I was worried about the hotel bill, but in the event I had enough money to pay.
in the extreme 极端地，非常地
The palace is magnificent in the extreme.
It’s annoying in the extreme.
in the flesh 本人，亲自
His appearance in the flesh ended the rumours about his death.
She was very excited about finally seeing the famous movie actor in the flesh.
in the future 将来，未来
Who knows what will happen in the future?
I hope I shall be more prompt in the future.
in the interim 在此期间
“My new job starts in May.” “What are you doing in the interim?”
I shall see you again next week; in the interim, write to me.
in the know 知道内情，熟知内幕
He is in the know about it.
In a print shop, Mr Harvey is in the know, but in a kitchen he can’t even cook an egg.
in the least 丝毫；极少；一点儿
Are you in the least interested in skiing?
You are not disturbing me in the least.
in the main 大体上，基本上
The boys are hard workers in the main.
The article has in the main preserved the fairness of news reporting.
in the meantime 在此期间，与此同时
I’ll call you Sunday, but in the meantime say nothing.
Some of them have eaten nothing save a few cocoanuts in all the meantime.
in the open 在户外，公开的
The party will be held in the open if it doesn’t rain.
The secret is now in the open.
in the past 在过去，从前
He could remember events far back in the past.
I’ve been there many times in the past.
in the raw 不加粉饰的，未加工的；无衣着的，裸体的
They saw life in the raw among those wild tribes.
Nudists spend a lot of their time in the raw.
in the red 负债，亏欠
My bank account is 50 in the red.
Our company was making money, but now it’s in the red.
in the right 正确；有理
He is in the right in this dispute.
He had put himself in the right by his generous apology.
in the saddle 在马上；在职，掌权
The boys were all in the saddle.
He was sick for months, but got healthy and is back in the saddle again.
in the way 挡住去路；碍事的
Go away, you’re always in the way.
Tell that boy not to get in the way.
in the world 在世界上；究竟；根本
They say he is the best tennis player in the world.
What in the world happened?
She will never in the world say no.
in the wrong 有错，负有责任
She was in the wrong.
Granted this is true, you are still in the wrong.