• 1. tamp down: 按紧 | 轻轻敲击以压 | 向下压紧
• 2. tamp down costs: 压低成本
• 3. tamp down the foundations: 砸实地基

• 1.Then I tamp down the soil with the back of a rake.
  然后我用耙背将土壤拍实。
  dict.yoduao.com
• 2.The good news: you don't tamp down your feelings.
  好处是：你不会压抑你的情感。
  dict.yoduao.com
• 3.On Monday, the White House aimed to tamp down expectations.
  周一，白宫试图降低人们对这次会议的预期。
  dict.yoduao.com

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