1、round up
围捕;逮捕
The police rounded up a number of suspects.
警方围捕了一些嫌疑犯。
She says the patrolmen rounded them up at the village school and beat them with rifle butts.
她说巡警在村里的学校把她们赶到一起，并用枪托殴打她们。
使聚拢;使聚集
He had sought work as a cowboy, rounding up cattle.
他找了一份放牛的差事，负责把牛赶到一起。
We've rounded up a selection of products.
我们已经精心挑选了一些产品。
2、come down
(成本、水平或数量)下降，降低
Interest rates should come down.
利率应该降低。
If you buy three bottles, the bottle price comes down to £2.42.
如果买3瓶，价格会便宜一些，每瓶2.42英镑。
落下;降落
The cold rain came down.
下起了冰冷的雨。
The curtain came down after the first act.
第一幕过后，幕布落了下来。
3、practically
简直；几乎
He'd known the old man practically all his life.
他几乎打记事起就认识这个老人。
I know people who find it practically impossible to give up smoking.
我认识一些人，他们觉得戒烟几乎是不可能的。
实际上；实践上
The course is more practically based than the Masters degree.
该课程比硕士学位课程更注重实践。
The British are not famed for their philosophy and tend to be more practically minded.
英国人不是以其哲学思想闻名，而是往往更注重实际。