around
单词辨析：
多用于非正式场合，常见于美国英语。也用作 around about。
She has around ten million US dollars in the bank.
她在银行里存有大约一千万美元。
Janet left here around seven o'clock.
珍妮特大约7点钟离开这里的。
表示实际数量可多可少或数值、尺寸等可大可小，也作 round about。
They left the museum at about 10 o'clock.
他们10点左右离开了博物馆。
He lives about 5 miles away.
他住的地方离这里5英里左右。
多用于书面语，强调接近精确数值、数量、时间等，误差较小。
The plane will be taking off in approximately ten minutes.
飞机大约10分钟后起飞。
He owes me approximately 400 US dollars.
他欠我大约400美元。
指按粗略估计，不强调十分接近精确数值。
There were roughly 300 people there.
那里大约有300人。
The Antarctica is a continent centred roughly on the South Pole.
南极洲是一片大致以南极为中心的大陆。
相关例句：
I've been walking around Moscow and the town is terribly quiet
我在莫斯科到处游逛，城里非常安静。
She helped me unpack my things and then we went around to see the other girls.
她帮我打开行李，然后我们去看望其他女孩们。
Today she wore her hair down around her shoulders.
今天她的头发披在肩上。
Senator Bentsen has declined to get involved this time around
这次本特森参议员又拒绝参与。
I'm just going to be hanging around twiddling my thumbs
我只会闲呆着，什么事也不做。
She moved things around so the table was beneath the windows.
她挪动家具使桌子靠在窗边。