keep down

基本解释

Economies of scale and limited investment choice will keep down charges.
规模经济和有限的投资选择会控制费用不会太高。
The Kremlin says the move is part of the government's attempt to keep down the prices of basic foodstuffs amid the country's worst drought on record.
克里姆林宫表示，这项举措的目的是政府为了在国家遭遇有史以来最严重的干旱时，能够保持基本粮食的价格不上涨。
Inflation remains a worry, and Brazil’s battle to keep down the value of the real has led to other capital controls on top of the tax on foreign investment.
通货膨胀是一个问题；为了保持雷亚尔的贬值，巴西政府已经先着手控制资金流入，再向国外投资征税。

And once he said: "Four-fifths of our troubles in this life would disappear if we would only sit down and keep still."
Packs of ice were put on my forehead to keep down the fever.
冰袋放在额头上用来降温。
耶鲁公开课 - 1945年后的美国小说课程节选
Everybody sit down again but don't but don't put your--keep your books handy because this is going to be pretty aerobic.
大家都坐下,但不要放下书,拿在手上,因为你们将要做些有氧运动
耶鲁公开课 - 博弈论课程节选

Politicians are reluctant to tamper with the Handwerk, whose apprenticeships keep down unemployment among the young.
ECONOMIST: German services

If you keep the number, size, or amount of something down, you do not let it get bigger or go higher.
If someone keeps a group of people down, they prevent them from getting power and status and being completely free.
If you keep food or drink down, you manage to swallow it properly and not vomit, even though you feel sick.