The first thing, person, event, or period of time is the one that happens or comes before all the others of the same kind.
She lost 16 pounds in the first month of her diet.
她节食的第一个月减掉了16磅。
the first few flakes of snow.
最初的几片雪花。
When something happens or is done for the first time, it has never happened or been done before.
This is the first time she has experienced disappointment.
这是她第一次感到失望。
The first thing, person, or place in a line is the one that is nearest to you or nearest to the front.
Before him, in the first row, sat the president.
在他前面第一排坐着总统。
You use first to refer to the best or most important thing or person of a particular kind.
The first duty of any government must be to protect the interests of the taxpayers.
任何政府的首要职责都必须是保护纳税人的利益。
You use first to refer to something that happens in the early part of an event or experience, in contrast to what happens later.
She told him that her first reaction was disgust.
她告诉他她的第一反应是厌恶。
If you say that something first happened or was done at a particular time, you mean that it had never happened or been done before that time.
Anne and Steve got engaged two years after they had first started going out.
安妮和史蒂夫在他们第一次约会的两年后订婚了。
If you do something first, you do it before anyone else does, or before you do anything else.
I do not remember who spoke first, but we all expressed the same opinion.
我不记得谁先发的言,但是我们都表达了同样的观点。
First, tell me what you think of my products.
首先,告诉我你觉得我的产品怎么样。
You use first when you are talking about what happens in the early part of an event or experience, in contrast to what happens later.
When he first came home he wouldn't say anything about what he'd been doing.
刚回到家时,他对自己一直在做的事只字不提。
In order to emphasize your determination not to do a particular thing, you can say that rather than do it, you would do something else first.
I'll die first, before I let you have all my money!
我宁愿死,也不会让你得到我所有的钱!
An event that is described as a first has never happened before and is important or exciting.
It is a first for New York. An outdoor exhibition of Fernando Botero's sculpture on Park Avenue.
在公园大道上举办费尔南多·博特罗雕塑的露天展览,这在纽约可是第一次!
at first hand
If you learn or experience something at first hand, you experience it yourself or learn it directly rather than being told about it by other people.
He arrived in Natal to see at first hand the effects of the recent heavy fighting.
他到纳塔尔亲自察看最近的激战所造成的影响。
not know the first thing about something
If you say that you do not know the first thing about something, you are emphasizing that you know absolutely nothing about it.
You don't know the first thing about farming.
你对耕种一无所知。
first of all
You use first of all to introduce the first of a number of things that you want to say.
The cut in the interest rates has not had very much impact in California for two reasons. First of all, banks are still afraid to loan.
降息在加利福尼亚州未造成很大影响的原因有二。第一,银行仍然害怕放贷。
at first
You use at first when you are talking about what happens in the early stages of an event or experience, or just after something else has happened, in contrast to what happens later.
initially
At first, he seemed surprised by my questions.
起初,他似乎对我的问题感到意外。
come first
If you say that someone or something comes first for a particular person, you mean they treat or consider that person or thing as more important than anything else.
There's no time for boyfriends, my career comes first.
我没有时间交男朋友,对我来说事业是第一位的。
put someone first , put something first
If you put someone or something first, you treat or consider them as more important than anything else.
Somebody has to think for the child and put him first.
得有人替这个孩子着想,把他放在第一位。
The first refers to the thing, person, event, or period of time that happens or comes before all the others of the same kind.
The second paragraph startled me even more than the first.
第二段甚至比第一段更让我吃惊。
The first you hear of something or the first you know about it is the time when you first become aware of it.
We heard it on the TV last night – that was the first we heard of it.
我们是昨晚在电视上听到的--那是我们第一次听说这件事。