roughly
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：
All the planets orbit the Sun in roughly the same plane, round its equator.
所有的行星大致在同一平面上绕太阳赤道运转。
He was roughly the same age as myself.
他大概和我同岁。
Roughly chop the vegetables, and keep back a little to chop finely and serve as a garnish.
大致切一下蔬菜，留下一点切细用作饰菜。
We had this understanding that courses were roughly the same weight.
我们已经了解到各门功课差不多一样重要。
The oil washed ashore on roughly 1,000 miles of coastline
石油沿着海岸线扩散到了大约1,000英里范围的沿岸海域。
'When roughly would this be? Monday?' — 'Something like that.'
“大概会在什么时候？星期一？”——“差不多吧。”