削减的英文：
cut down
reduce
lower

参考例句：

Abridgement of expenses
费用的削减

Apply the axe to(ie drastically reduce)local government spending.
大刀阔斧削减地方政府的开支。

I moved immediately after the election to pare down radically the size of the executive branch.
大选后，我立即采取行动，大肆削减行政部门的人员。

I gave Tom the exact dose of morphine that would keep him pain-free, but not diminish any awareness that remained
我给汤姆服吗啡的剂量，刚好既能减轻他的痛苦又不削减他尚存的意识。

To shed excess labor force
削减冗员

Raise tariff barriers against foreign goods
削减进口税.

They're cutting funds for education.
他们正在削减教育经费。

Reduction of household expenses
家用开支的削减

Cut or reduce(sth)drastically
大幅度裁减或削减(某物)

The school was confronted with a reduced Budget.
学校面临削减预算。

cut是什么意思：
v. 切，割；裁剪；削减；缩短；剪切；删剪；停止；不出席；刺痛；切牌；相交
n. 切口；伤口；削减；式样；剪裁；切片；削球

That was a cut at me.
那是中伤我的话。

Gasoline cuts oil and grease.
汽油溶解油脂。

She cut a hole in the cloth.
她在布上剪了个洞。

down是什么意思：
prep. 在…下，沿着
v. 下降，打倒
n. 潦倒；羽绒；丘陵

Down with hegemonism!
打倒霸权主义！

The sun is down.
太阳下山了。

Close down autos and you close down steel and rubber.
关掉了汽车工业你也就关掉了钢铁工业和橡胶工业。

reduce是什么意思：
v. 缩减，减小；简化；将…还原；节食；降职

be reduced to (a) pulp
变成浆状,成纸浆 [软块]

They held a sale to reduce their inventory.
他们降价出售库存货物。

To reduce in rank;demote.
使降职，使…降级