1.  guarantee
2.  pledge
3.  ensure
4.  assure
5.  warranty

• 1. 保证: Guarantee | warranty | assurance | ensure
• 2. 保证金: security fund | Margin | deposit | security deposit
• 3. 保证书: letter of guarantee | warranty | Guarantee | indemnity

更多释义

• 1.政府保证支持这项计划。
  The government pledged their support for the plan.
  dict.yoduao.com
• 2.我们向他保证给予支持。
  We assured him of our support.
  dict.yoduao.com
• 3.我们保证5年不生锈。
  We provide a 5-year guarantee against rust.
  dict.yoduao.com

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