in debt . in debt to . owing欠…的债

He is in debt to all his friends．他欠所有朋友的债。

He is heavily in debt．他债台高筑。

in detail . minutely详细地；详尽地

There isn't time to explain in detail．没有时间详细阐述。

The teacher explained the text in detail．老师详细解释了课文。

in due time . at the exact time及时

He arrived in due time．他及时赶到了。

Spring and summer will arrive in due time．春季夏季会适时来临的。

in earnest . serious . seriously  . 认真的／地

Her parents thought the girl was joking when she said she wanted to be a scientist，but she was in earnest．这女孩说她想当一名科学家，她父母认为她是在开玩笑，但她却是认真的。

Surely you are not in earnest in saying that，are you? 你说那话不是当真的，是吗?

Did you say it in earnest? 你那样讲是当真的吗?

in  effect . in fact实际上

The two methods are in effect identical．这两种方法实际上是一样的。

in  effect . （of law）become active（法律）生效

These regulations are still in effect．这些规定仍然有效。

The law remains in effect．这条法律仍然有效。

in error . mistaken；wrong弄错

He has sent the book to you in error．他把书错寄给你了。

You were in error in assuming that he would wait for us．你误以为他会等我们。

in essence . in its nature；as a matter of fact在本质上；实质上

In essence，both proposals are much the same．这两个建议实质上是差不多的。

Officially he is in charge，but in fact his secretary does all the work．从职位上讲是他负责，但实际上，他的秘书做所有的工作。

 in evidence . easily seen明显；显而易见

She's the sort of woman who likes to be very much in evidence．她是个特爱出风头的女人。

Smith was nowhere in evidence．史密斯无论在何处都不惹人注意。

The tulips are blooming；spring was in evidence．郁金香盛开，春天显然到了。

in exchange  . in exchange for . exchanging for（以…）交换

I gave him my used textbooks and received a dictionary in exchange．我把旧课本给了他，换得了一本字典。

in existence . existing现有（的）；存在的

This is the largest ship in existence．这是现有的最大的船。

Many species of animals which once lived on the earth are no longer in existence．有许多动物曾一度在地球上生存过，但今天已不复存在了。

in fact . actually；really；indeed实际上

I think so；in fact，I'm quite sure．我想是这样，事实上我十分相信是这样。

in favour of .  in support of赞成；支持

Are you in favour of the proposal? 你赞成这个建议吗? e students were in favour of reform．学生们都赞成改革。

Everyone in the class voted in favour of the dancing party．班里的每个人都投票赞成开舞会。

in favour of . to the advantage of；helping有利于

The evidence is in favour of the defendant．证据对被告有利。

Price control would gradually dis appear in favour of a free market．价格控制将逐渐消失而代之以自由市场。

The law is in favour of the poor people．这条法律有利于穷苦人。

Prices are in buyers' favor．价格对买主有利。

in favour of . be paid to支付；以…为收款人

Cheques should be drawn in favour of the treasurer．开支票应以会计为收款人。

Please make out your checks in favour of the corporation．开支票时，请写明本公司为收款人。

in force . have power；become law生效

The system of conscription has been in force for many years．征兵制度已经实行好多年了。

The treaty shall remain in force for a period of ten years．这条约的有效期为十年。

New timetable is in force．新的时间表现在生效。

in force . a great number of；in a large group大批；大量

The enemy is in force behind the hill．敌人在山后集结了大量兵力。

 in front of . before在…的前面

A large tree stands in front of his house．他的房前长有一棵大树。

 in full . completely 完全地

Please write your name in full．请把你的全名写出来。

Please describe the matter in full．请把事情详细说说。

They accomplished the task in full．他们圆满地完成了这项任务

His speech was published in full in all the papers yesterday．昨天各家报纸全文刊登了他的讲话。