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他在远处向你喊叫！
off duty 下了班(的)，不在值班(的)
She is off duty,so please come to her tomorrow. 她下班了，所以请明天来找她吧。 on duty 在上班(的)，在值班(的) He is on duty,so he can't go out. 他在上班，所以他不能出去。 on earth 究竟，到底
Who are you on earth? And why do you know my everything? 你到底是谁？为什么直达我的一切？ at all events 无论如何，不管怎样
Although today I am very busy,at all events ,today is your birthday,so I must come to your party.
虽然今天我很忙，但不管怎样，今天是你的生日，所以我一定会来你的派对。 in any event 无论如何，不管怎样
Although today I am very busy,in any event ,today is your birthday,so I must come to your party.
虽然今天我很忙，但不管怎样，今天是你的生日，所以我一定会来你的派对。 in the event of 万一，倘若
You should bring the umbrella in the event of being caught by the heavy rain. 你应该带上伞，以免被大雨淋湿。 for example 例如
If you wanna learn English well,you should often practise it, and for example, you can see a lot of good American TV series.
如果你们想学好英文，你们应该经常练习。例如，你们可以看许多好的美剧。 in the face of 在…面前；不顾
He saved that boy in the face of danger. 他不顾危险救了那个男孩儿。
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in fact 其实，实际上
He said he would help me,but in fact,he never did it. 他说他会帮我，但实际上，他从未做过。 in favo(u)r of 赞同，支持
We are in favo(u)r of your idea,because it's really useful. 我赞成你的想法，因为它真地有用。 on fire 着火，起火
The house is on fire,so we should try to put it out. 房子着火了，所以我们应该努力扑灭它。
on foot 步行
He goes to work on foot every day. 他每天步行去上班。
in force 生效，有效；在实施中；大量的
After a short while,the medicine will be in force(生效，有效). 过一会儿，这药就会起效。
The plan is in force(在实施中),so don't be worried. 计划在实施中，所以不用担心。
The goods are in force(大量的),so we have to carry them many times. 货物的量很大，所以我们不得不搬运它们很多次。 in front of 在…（外部的)面前，在…(外部的)前面 There is a big tree in front of the house. 在房子前面有一棵树。
in the front of 在…（内部的)面前，在…(内部的)前面 There is a desk in the front of the classroom. 在教室前面有一张桌子。
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in future 今后，从今以后(从现在起，马上会发生的事。) In future,I won't be late again. 从今以后，我再也不迟到。
in the future 在将来（在很远的将来才会发生。）
I study hard now,so in the future,I may have more chances to be successful. 现在我努力读书，所以在将来，我可能有更多的机会成功。 in general 一般说来，大体上
In general,most of the people depend on themselves to succeed. 一把说来，大部分人都是靠自己成功的。 on (one's) guard 警惕，提防；站岗，值班
Your purse should be on your guard(警惕，提防),or it may be stolen. 你应该看好自己的钱包，否则它会被偷的。
On his guard(站岗，值班),everything will be fine. 有他站岗，每件事情都会顺利的。 in half 成两半
He cut this apple in half. 他把苹果切成了两半。 at hand 近在手边，在附近
Your key is at hand（近在手边）,so don't look for it around. 你的钥匙就在手边，不用到处找它。
The house is at hand（在附近）,so we just need five minutes to arrive. 这房子就在附近，我只需五分钟就能到。 by hand 用手，用体力用手
When you move it by hand(用手),be careful,because it's easily broken.
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当你用手移动它的时候，小心一点，它可能会碎。
You should have a good rest,because you have to finish this task more by hand(用体力).
你应该好好地休息，因为你不得不用更多的体力完成这个任务。 hand down 把…传下去
The good tradition should be handed down generatio by generaion. 好的传统应该被一代代地传下去。
hand in hand 手拉手；密切关联地，同时并进地 Let's hand in hand（手拉手）and go ahead. 让我们手拉手，向前走。
We should carry out the two hings hand in hand（密切关联地，同时并进地）. 我们应该让两件事密切关联地/同时并进地展开。 in hand (工作等)在进行中；在控制中 The work is in hand. 这项工作在进行中/在控制中。 on hand 在手边，在近处
Your key is on hand（在手边）,so don't look for it around. 你的钥匙就在手边，不用到处找它。
The house is on hand（在近处）,so we just need five minutes to arrive. 这房子就在附近，我只需五分钟就能到。 on (the) one hand 一方面 on the other hand 另一方面
The reasons why she can study English well are the following:on (the) one hand, she is very interested in it;on the other hand,she really studies it hard.
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她能学好英语的原因如下：一方面，她对它非常感兴趣；另一方面，她真地很努力地学习它。 at heart 内心里，本质上
Although I don't speak out my love to you, at heart（内心里）, I really love you! 虽然我没有把爱你说出口，但在我心里，我真地爱你！
Seemingly,this question is very hard,but at heart（本质上）,it is very easy. 这道题看似很难，但本质上，它很简单。 by heart 凭记性
We cannot just remember an artice by heart but also by comprehension. 我们不能光凭记性记住文章，也要靠理解力。 at home 在家，在国内；舒适，无拘束；熟悉，精通 Stay at home（在家）and listen to music. 呆在家里听音乐。
He is very famous at home（在国内）. 他在国内很有名。
Welcome to my place,and please feel at home（舒适，无拘束） 欢迎来到我家，请不要拘束。
She is completely at home（熟悉，精通）with computers. 她对电脑十分在行。
in hono(u)r of 为纪念，为了向…表示敬意 We built this bridge in hono(u)r of him.
为了纪念他/为了向他表示敬意，我们修建了这座桥。 on／upon one's hono(u)r 以名誉担保 He is innocent on/upon my hono(u)r. 我一名义担保，他是无辜的。