around = about 大约
说明时间时的句型是：It is + 时间（不用介词的）
adv.
【帮助说明】 For the special uses of around in phrasal verbs， look at the entries for the verbs. For example come around to sth is in the phrasal verb section at come . around在短语动词中的特殊用法见有关动词词条。如come around to sth在词条come的短语动词部分。
1
大约
approximately
He arrived around five o'clock.
他大约是五点钟到的。
The cost would be somewhere around £1 500.
费用要在1 500英镑上下。
2
周围四周
on every side surrounding sb/sth
I could hear laughter all around.
我可以听见周围的笑声。
a yard with a fence all around
四周围着栅栏的院子
3
(especially NAmE)
BrE usually round
围绕环绕
moving in a circle
How do you make the wheels go around?
你怎样使这些轮子转动起来
4
(especially NAmE)
BrE usually round
以圆周计算
measured in a circle
an old tree that was at least ten feet around
合抱至少十英尺的古树
5
到处向各处
in or to many places
We were all running around trying to get ready in time.
我们东奔西跑，望能按时准备就绪。
This is our new office─Kay will show you around.
这是我们的新办公室——凯会带你参观一下。
There were papers lying around all over the floor.
地板上四处散乱着文件。
6
闲散地无目的地
used to describe activities that have no real purpose
There were several young people sitting around looking bored.
有几个年青人闲坐着，一副无聊的样子。
7
出现现有可用
present in a place available
There was more money around in those days.
那年头比现在富裕。
I knocked but there was no one around.
我敲了门，但是没有人应门。
Digital television has been around for some time now.
数字电视已经面市一段时间了。
8
（体育运动、专业等中）走红的，活跃的
active and well known in a sport， profession， etc.
a new tennis champion who could be around for a long time
可能会走红很长时期的新网球冠军
She's been around as a film director since the 1980s.
自20世纪80年代以来她一直是活跃在影坛的著名导演。
9
(especially NAmE)
BrE usually round
转弯掉转掉头
in a circle or curve to face another way or the opposite way
She turned the car around and drove off.
她把轿车掉头开走了。
They looked around when he called.
他呼喊时他们回头张望
