keep a lid on
英 美
One policy in particular has helped keep a lid on unemployment.
一项特别的政策帮助掩盖了失业。
Historically, Labour mobility has helped to keep a lid on unemployment.
历史上,劳动力流动有利于将失业率控制在一定范围之内。
They'll close hot funds to new investors; they'll try to keep a lid on fees.
他们将对投资者关闭这些热门基金,同时尽量掩盖其中的费用问题。
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