大概的英文：
roughly
probably
rough
approximate
about
generally
approximately
somewhere
perhaps
maybe

参考例句：

The distinction probably has been slurred over.
这种区别大概就要被忽视了。

"Well, I guess she's trying to play hard-to-get."
"嗯,大概想跟我玩「欲擒故纵」的游戏吧!"

Likely but uncertain;plausible.
大概的可能但不能肯定的;似乎真实的

A word of advice may not be amiss here.
在这里奉劝一句大概没什么不妥吧。

Jews in the Midwest were probably not keen about advertising their affiliation
在中西部的犹太人大概并不热心于宣传他们的身分。

Jews in the midwest were probably not keen about advertising their affiliation
在中西部的犹太人大概并不热心于宣传他们的身份。

He did not appear in spirits; some thing unconnected with her was probably amiss
他的情绪不高。大概一件与她无关的事情没有办好。

Presumably one would want to get some kind of dialog going between management and the unions.
在管理层和工会之间大概会有某种形式的对话。

In all probability
大概,多半

The approximate time is three o' clock
大概的时间是三点钟。

roughly是什么意思：
adv. 粗略地；大致上；粗暴地；粗糙地

Roughly crumble the cheese into a bowl.
把干酪大致弄碎，装入一只碗内。

This trail was roughly parallel to the border.
这条小路与边境线大致平行。

He was roughly the same age as myself.
他大概和我同岁。

probably是什么意思：
adv. 可能，大概，或许

thing that is(most)probable;probable event or result
（很）可能有的事物; 可能发生的事;可能出现的结果

They'll probably have a few in by this time.
到这个时候他们多半会喝上几杯。

the probability of a specified outcome.
有产生特定结果的可能。

rough是什么意思：
adj. 粗糙的；未经加工的；粗鲁的；狂暴的；粗略的；艰苦的
n. 高低不平的地面；艰苦；未经加工的材料
v. 使粗糙；粗暴对待；草拟
adv. 粗暴地；艰苦地

trees with rough bark; rough ground; a rough ride; rough skin; rough blankets; his unsmooth face; unsmooth writing.
有着粗糙树皮的树；粗糙的地面；粗野的驾驶；粗糙的皮肤；粗毛毯子；不光滑的脸；不流畅的作品。

Rough Bushy eyebrows
浓密的粗眉

Take the rough with the smooth