to make a serious or formal promise to give or do something. 发誓;保证. We are asking people to pledge their support …
guarantee ： 指对事物的品质或人的行为及履行义务、义务等承担责任的保证。 pledge ： 正式用词，指通过郑重许诺、协议或立誓等保 …
a serious or formal promise, especially one to give money or to be a friend, or something that you give as a sign that …
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