Why do policymakers of alcohol control place density restrictions?
出自-2013年6月閱讀原文
柯林斯高階英漢雙解學習詞典釋義
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限制;約束;規定
A restriction is an official rule that limits what you can do or that limits the amount or size of something.
例句
...the lifting of restrictions on political parties and the news media...取消對政治黨派和新聞媒體的限制The relaxation of travel restrictions means they are free to travel and work.旅游限制的放松意味著他們可以自由地出行和工作。
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（對行動的）限定，約束，限制因素
You can refer to anything that limits what you can do as a restriction.
例句
His parents are trying to make up to him for the restrictions of urban living...他的父母正試圖彌補他在城市生活的局限。The second restriction upon the president's power is the limited time at his disposal.總統權力受到的第二項限制就是可以自由支配的時間有限。