1. He is on a business trip.
他现在出差了。
还能这样说：
He's on business now.
He is taking an official trip.
谚语：
Better the foot slip than the tongue trip.
宁可失足，不可失言。
2. He is off today.
他今天放假。
还能这样说：
He is on vacation.
He isn't working today.
应用解析：
be badly off 生活贫困，运气不佳；
be comfortably off 生活宽裕；
be better off 情况好些，生活比较宽裕；
be worse off 情况更差，更加贫困；
from the off 从头开始
3. He is not in now.
他现在不在。
还能这样说：
He is out now.
He is not here now.
4. He's out to meet with customers now.
他外出见客户了。
还能这样说：
He's out to see clients right now.
He goes to see the clients.
谚语：
Don't make a mountain out of a molehill.
不要小题大做。
5. I'm sorry he's busy now.
恐怕他现在没时间接您的电话。
还能这样说：
I'm afraid he's occupied now.
I'm sorry he is tied up.
应用解析：
You are busy as a bee from morning to night.
你真忙！
6. His line is busy at the moment.
他正在通话。
还能这样说：
He's talking on another line.
He's on another line now.
应用解析：
at the last moment 在最后关头；
at the moment 此刻，那时；
every moment 时时刻刻；
for a moment 片刻；
in a moment 一会儿、不久，立即、马上
7. When will she be back?
她什么时候回来？
还能这样说：
How long do you think she'll be back?
Do you know what time she'll be back?
谚语：
What is got over the devil's back is spent under his belly.
（钱财）来得不正，去得也不正。
8. She should be back after lunch.
她午饭后应该会回来。
还能这样说：
The time she can be back is after lunch.
It is after lunch that she should be back.
应用解析：
at the back of one's mind 在记忆的深处，下意识地；
at sb.'s back 跟随某人，支持某人；
be glad to see the back of 希望摆脱某人；
be laid on one's back 卧病在床
9. I'll call back later.
我稍后再打。
还能这样说：
I'll ring again later.
I'll call her later.
应用解析：
later on 后来，过些时候；
no later than 不迟于；
sooner or later 迟早
10. Sorry, the number you dialed is not answered for the moment, please redial later.
对不起，您拨打的电话暂时无法接通，请稍后再拨。
还能这样说：
Sorry, the number you dialed is busy now, pleae dial again later.
Sorry, you can't get the person you dialed at this time. Please redial later.
应用解析：
big number 要人，大亨；
by numbers 依靠数量上的优势；
in round figures 以整数表示、大概，总而言之；
make one's number 报到，拜访
11. How can I get in touch with him?
我怎样才能和他取得联系？
还能这样说：
How do I connect him?
Can you tell me his contact information?
12. I have no idea when he'll be back.
我不知道他何时回来。
还能这样说：
I don't know when.
I wasn't told about it.
应用解析：
at the idea of 一想起……就；
great idea 高见，妙策；
buck one's idea up 更加清醒，更加警惕
13. He is in a meeting right now.
他现在正在开会。
还能这样说：
He is holding a meeting now.
He is having a meeting at the moment.
谚语：
Who makes everything right must rise early.
要把事事都做好，必须坚持起得早。
14. Would you mind calling back later?
你能过会儿再打来吗？
还能这样说：
Can you call back after a short time?
What about ring back in a short while?
谚语：
Little things amuse little minds.
小人志卑。
15. She is still angry with you, so she doesn't answer you.
她还在生你的气，所以不接你的电话。
还能这样说：
She is still displeased with you and refuses to answer your call.
She still gets angry with you, so she will not receive your call.
应用解析：
get angry at sth. 因某事而生气；
make sb. angry 使某人生气
16. It's urgent. Could I have his mobile phone number?
我有急事，可不可以告诉我他的手机号码？
还能这样说：
Can you tell me his cell phone number? I have something urgent.
Would you be so kind as to let me know his cell phone number? It's urgent.
谚语：
Deliver not your words by number but by weight.
言不在多，而在有物。
17. She doesn't stand your constant bother.
她受不了你无休止的纠缠。
还能这样说：
She has tired of being entangled by you.
She doesn't want to be bothered from you any more.
应用解析：
bother one's head about 为……而操心；
