I can be your hero. I can kiss away the pain.

我能成为你的英雄, 我能吻去你的痛苦.

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I can kiss away the pain. oh yeah!

以吻抚平创痛, 哦,是的!

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I feel happy at times we have had angry words but these have been kiss away.

我们恶语争执时,爱的双唇把它们吻得无影无踪,我的心也顿觉甜蜜.

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Let me kiss away your tears.

让我吻掉你的泪花.

《简明英汉词典》