Learner's definition of NOW
1
: at the present time现在；目前；此刻 -
We were having trouble before, but everything's okay now.先前我们有麻烦，现在一切都好了。
-
I'm feeling much better now, thank you.我现在感觉好多了，谢谢你。
-
I love you now and I'll love you forever.我现在爱你，我将永远爱你。
-
Now's the time for action.现在是该行动的时候了。
-
“And now,” he said, “all we have to do is wait.”“此刻，”他说，“我们只能等待。”
-
“Can we talk?” “Not now. I'm really busy.”“我们能聊聊吗？”“现在不行。我真的很忙。”
-
The room is now used as a home office. = They now use the room as a home office.这个房间目前用作家庭办公室。
-
He knows now that he was wrong.他现在知道是他错了。
-
Police have now identified the man who they believe stole the car.警方现在确认这名男子就是他们认为偷走那辆车的人。
-
Scientists now believe that the bones belong to a different species of reptile.目前科学家们认为这些骨头属于另一类爬行动物。
-
the now famous photograph of an American sailor kissing his young wife一名美国水手亲吻他年轻妻子的当下著名照片
-
I wish I knew then what I know now.当初我知道这些就好了。
-
This is the only chance you'll ever get. It's now or never.这是你唯一的机会，机不可失，失不再来。
—
often used to show that you are annoyed about something常用于表示气恼 -
Now you tell me?! I needed to know that yesterday!你现在才告诉我？！我昨天就该知道！
-
You tracked dirt everywhere! Now I have to spend all day cleaning again!你弄得到处脏死了！这一来我得花一整天清理！
-
“I know you've explained a lot—but can I ask just one more question?” “What now?” = “What is it now?” = “Now what?”“我知道你已解释了很多——但我能再问一个问题吗？”“又怎么了？”
-
OK: I'll do it your way. Are you happy now?好。我按你说的做。这下你满意了吧？
2
: in the next moment : very soon马上；当即 -
I have to leave now. [=right now, right away, immediately]我现在就得离开。
-
It's time to go home now.现在就该回家了。
-
If I don't do it now, I'll forget to do it later.如果我不马上做，过会儿我就会忘了。
-
They'll be back any minute now!他们马上就要回来！
-
Any day now, he'll be walking through that door.他随时都会走过那扇门。
-
Now which way do we go?我们现在该走哪条路？
-
What do I do now?我现在怎么办？
-
What now? = Now what? [=what next?]接下来呢？
3
: in the present situation当前 -
He'll never believe me now!他如今不会相信我了！
-
If you can't stand the heat now, you certainly won't be able to stand it in the summer.如果你眼前这点热都受不了，夏天你肯定也会受不了。
4
: at the time referred to in the past那时 -
Her parents arrived home the next day. Now the trouble really began.第二天她的父母到了家。那时麻烦才算真的来了。
-
I next met her again a few years later. She was now 30 years old and working for a law firm.几年后我再次见到她。那时她有30岁了，在一家法律事务所工作。
5
: for an amount of time until the present time迄今 —
often used with for常与for连用 6
—
used to make a command or request or to express criticism or disapproval用于表示命令、请求、批评或不赞同 -
Hurry up, now, class started three minutes ago.嘿，快点吧，已经上课三分钟了。
-
Now, Billy, that's no way to talk to your mother!嘿，比利，不该那样和妈妈讲话！
-
Now you be sure to write, you hear?嘿，你一定要写。听见了吗？
-
Well, now, what is this I hear about you going back to school?嘿，我听说你不打算回学校？
-
Come now. You know that's not true. = (chiefly US) Come on, now. You know that's not true.行啦，你知道那不是真的。
-
Now, which one of you kids broke the window?喂，你们这些小孩谁打破窗户的？
-
Now, you listen to me.喂，听我说。
-
Now see here!喂，听着！
7
—
used to introduce an important idea or to show a change in subject用于引出重要想法或转换话题 -
Now, I'd like to call your attention to the statue in the middle of the room.现在，请看房子中间的这尊雕像。
-
“What's the meaning of life?” “Now that's what I call a really important question!”“生活的意义是什么？”“嘿，那就是我说的真正重要的问题！”
-
Now that was a great song!请注意，那是首极好的歌！
-
Now where was I? Oh yes, I was telling you about my Uncle Harry.咦，我说到哪儿了？哦，想起来了，我说到我的叔叔哈里。
-
Now you've done it!嘿，你已经做到了！
-
Now don't get too excited.喂，不要太激动。
-
Now who could that be?那会是谁呢？
-
Now then, what shall we do next?可是，下一步我们做什么？
◊ The phrase now for is often used to introduce a different idea or activity.接下来
(every) now and then
also (every) now and again
: not often but sometimes有时；时不时 -
We still see each other (every) now and then.我们还时不时见个面。
-
Now and then she would come in to check on me.有时她会来看看我。
-
The silence in the house was broken now and again by the ringing of the telephone.屋里的安静不时被电话铃声打破。
now, now
1
—
used to tell someone not to be worried or unhappy好啦（用于告诉某人不要担心或不要不开心） 2
—
used to express criticism or disapproval得了（表达批评或不赞同）
now you're talking
— see 1talk 2 now /ˈnaʊ/ conjunction
Learner's definition of NOW
: since something is true : because of the fact that something happened既然；由于 —
usually + that -
Now that you mention it, I am kind of hungry.既然你提到了，我是有点饿了。
-
Now that we're all here, let's start the meeting. = Let's start the meeting now that everyone's here.既然我们都到了，那就开会吧。
3 now /ˈnaʊ/ noun
Learner's definition of NOW
[singular]
: the present time or moment现在；此刻 -
A lot of things can happen between now and then.从现在起可能会发生很多事。
-
By now, you must have heard the news. = You must have heard the news by now.现在，你们一定听到这个消息了。
-
The kids are supposed to be in bed by now.孩子们现在应该上床睡觉了。
-
That's enough for now, but we may need some more later.现在是够了，但待会儿我们可能还要一些。
-
Things are fine for now.目前情况还不错。
-
Fifty years from now you'll be telling your grandchildren about this day.五十年后，你可以给你的孙辈讲讲今天这个日子。
-
She's due back a week from now.一周后她就应该回来了。
-
We'll be here from now until November.从现在起直到十一月我们都待在这儿。
-
I promise, from now on [=from this moment and forever into the future], I'll always tell you the truth.我保证从现在起永远对你说真话。
-
From now on, no one can use my car without my permission.从现在起，没有我的同意任何人不准用我的车。
-
Until now, doctors had no idea what caused the disease. = Up to now, they didn't know what caused it.到目前为止，医生还不清楚引起这种疾病的原因。
— see also here and now at 1here