英文: Nothing can assure permanent happiness.
中文: 没有什么东西能确保永久的幸福。英文: Assure products are same to samples.
中文: 保证供货与打板效果一致。英文: I assure you of the quality.
中文: 我可以保证货的质量。英文: I assure you of its quality.
中文: (我向你保证它的品质。)英文: I assure you that there's no danger.
中文: 我向你保证没有危险。