1、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。
2、expense
花费;费用;开支
He's bought a specially big TV at vast expense so that everyone can see properly.
他花大价钱买了一台特别大的电视机,这样每个人都能看清楚。
To avoid extra expense and mess later on, try to decide on fittings before the plastering's finished.
为避免将来出现额外的开支和不必要的麻烦,尽量在抹灰完工之前把固定设施确定下来。
由…付费
Should architects continue to be trained for five years at public expense?
建筑师是否应该继续接受5年的公费培训呢?
Teachers who signed up did so out of personal choice and at their own expense.
报名的教师完全出于自愿而且费用自理。