太难了，我弄不懂。
It's over my head. *直译是“它超过了我的头脑”。用于所听到的信息或事情，难于理解、弄不懂时。
...so, that's the way to use computers. (总之，电脑是这样使用的。)
It's over my head. (太难了，我弄不懂。)
It's beyond me.
我也搞不清楚。
Your guess is as good as mine. *guess “推测，猜想”。这是句常用表达方式，意为“你要不知道，那我更不知道了”。
How many people live in this town? (这个镇上住了多少人?)
Your guess is as good as mine. (我也不清楚。)
越想越糊涂。
The more I think about it, the less I understand it. *如例句所示，在more(更好的，更多的)、less(比较少的，更少的)等比较级前面加the，构成the 比较级……，the 比较级……。
我不知道他要干什么。
I don't know what he is driving at. *drive at... “打算做……”。
I don't know what he intends.
I don't know what he is getting at.
I don't know what he is trying to do.
It's not clear. (我不清楚。)
That's unclear.
That's clear. (那很清楚了。)
她到底想干什么?
What's she after?
What's she after? (她到底想干什么?)
I'm not sure. (我不清楚。)
What's her game?
我一点儿都不知道。
I have no idea.
Do you know where my pen is? (你知道我的笔在哪儿吗?)
I have no idea. (我一点儿都不知道。)
I have no clue.
No idea.
It's all Greek to me.
我怎么不知道。
I didn't know that.
John got married last week. (约翰上星期结婚了。)
I didn't know that. (我怎么不知道。)
That's news to me. *习惯用法。
I wasn't aware of that.
不知道。/不太清楚。
I don't know.
Do you know where she's from? (你知道她是从哪儿来的吗?)
I don't know. (不知道。/不太清楚。)
I have no idea.
我不太清楚。
I don't know for sure. *for sure 有“确切地”、“毫无疑问地”的含意。
Do you know the way to my house? (你认识去我家的路吗?)
I don't know for sure. (我不太清楚。)
I don't know for certain.
I'm not absolutely sure.
谁也不知道确切的情况。
No one knows for sure. *这种说法与“who knows?”几乎相同，但因为有了for sure，所以句子含有知道得不确切，但也有各种各样的说法的语感。
我怎么会知道?
How should I know? *用于被问到“自己不可能知道”、“根本不知道”的问题时。根据说话的语气，有时会给人以不理睬对方、冷淡对方的语感。
Is he married? (他结婚了吗?)
How should I know? (我怎么会知道?)
谁能知道?
Who knows? *该句有时让人听起来有些富有哲理。
What is the meaning of life? (什么是人生?)
Who knows? (谁能知道?)
Nobody knows.
No way of knowing.
There's no way of knowing.
It's impossible to find out.
●反问
有事吗?
Yes?
Excuse me... (对不起……)
Yes? (有事吗?)
为何?
What for?
I bought this beautiful pen. (我买了一支漂亮的钢笔。)
What for? (那又为何?)
您说什么?
Pardon me? *因为声音小而没有听清楚或一时没能理解对方所表达的意思时，与其装作听见或听懂了，不如问一句Pardon me?这样就可以不失礼貌地将对话进行下去。
Is there a post office near here? (这附近有邮局吗?)
Pardon me? (您说什么?)
Pardon?
I beg your pardon?
现在怎么样?
How about now?
对不起，你说什么?
Excuse me?
What did you say?
什么?
What? *用于没听清对方说什么、没理解对方的意思时。但这样的问法让人听起来有些粗鲁和生硬。
Huh? *比what?更随便的说法。
你说什么来着?
Did you say anything? *用于没听见对方说什么、或别人说话时，自己走神或不知对方是否说了什么的场合。
对不起，你说什么来着?
I'm sorry, what did you say? *确实听到对方说了什么，希望对方能够重复一遍。
那又怎么样呢?
So what? *含有不感兴趣和轻蔑的语气。口语中常用。
What of it?
什么意思?
What does it mean? *没弄明白对方所说事情时，可以这样积极主动地问。
What do you mean?
Please explain what you mean. (请您解释一下您的意思。)
What are you trying to say? (您想说什么?)
What do you mean by that? (您这是什么意思?)
你是说……吗?
Are you saying that...? *确认对方讲话内容时。
Are you saying that it's a bad idea? (你是说这个主意不好?)
That's right. (是的。)
Do you mean...?
Are you trying to say that...?
后来怎么样了?
Then what?
And then?
What happened then?
他到底想干吗?
What's he driving at? *用于不明白对方的意图时。
您能再说一遍吗?
Would you repeat that, please? *用于没有听清或没有听懂时。
Could you repeat that, please?
Could you say that again, please?
Say it again. (再说一遍。)
Please say it again. (请再说一遍。)
Please repeat that. (请再重复一遍。)
您说得太快了。
You're speaking too quickly.
You're talking too fast.
请您再说慢一点儿。
Please say it more slowly.
Please speak more slowly.
More slowly, please.
Please speak slower.
Please don't speak so quickly. (请您不要说得太快。)
Would you slow down, please? (您能说慢一点儿吗?)
我跟不上您说的。
I can't keep up.
请再大一点儿声说。
Please speak a little louder.
Could you speak up? (您能再大一点儿声儿吗?)
A little louder, please? (请大点儿声。)
Speak up, please? (请大声说。)
Please speak up.
Please speak louder.
我听不见。
I can't hear you. *这种情况下只能用hear而不能用listen。
I can't hear a word you're saying. (我根本听不见你说什么。)
I can't hear you at all. (根本听不见。)
I can't hear you well. (我听不太清楚。)
我没听见你说什么。
I couldn't catch what you said. *“听见，明白(话语等)”。
I didn't catch that.
你在说什么呢?
What are you talking about? *用于听不懂对方所说的内容，或没注意听对方说什么的场合。
What did you say? (你说什么呢?)
●感想
就像我一样。
Just like me!
John is very smart. (约翰真聪明。)
Yeah, just like me! (嗯，就像我一样。)*夫妻谈论自己的儿子约翰。
好吃吗?
Was it good?
We had melon for lunch at school. (在学校吃午饭时，我们吃了哈蜜瓜。)
Was it good? (好吃吗?)
玩得高兴吗?
Did you have fun?
After school, we played soccer. (放学后，我们去踢足球了。)
Did you have fun? (玩得高兴吗?)
这套衣服怎么样?
How do you like this suit?
How do you like this suit? (这套衣服怎么样?)
It looks great on you. (很配你呀!)
How do you like this suit? (你看这件衬衫怎么样?)
I think it's nice. (我觉得挺好。)
你觉得怎么样?
How did you like it?
How did you like it? (你觉得怎么样?)
I liked it very much. (我非常喜欢。)
What did you think of it?
你喜欢吗?
Did you like it?
Did you enjoy it?
你觉得那个怎么样?
What do you think of it? *询问别人有何感想时。
What do you think of our new boss? (你觉得我们新老板怎么样?)
I think she's very friendly. (我觉得她非常友善。)
What do you think about it?
●询问、叙述情况
结果怎么样?
How'd things turn out? *turn out... “结果是……”。
How'd things turn out? (结果怎么样?)
They turned out to be miserable. (结果很惨。)
How was it?
How did it go?
How did it turn out?
How did it end up?
长话短说……
To make a long story short,...