"just to pursue a while fake happiness in the past, u willing to let go of the happiness in the front of u"
我翻译的中文是 : "为了追求过去的那一眨幸福的梦幻泡影，你愿意丢掉已经在眼前的幸福."

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nice translation
“一眨”is not appropriate,we always say"一眨眼”means it's disappear fast and won't last long.
只为追求过去那一眨眼的梦幻泡影，你愿意放弃触手可及的幸福。

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若是爱浓时，旧情难舍，宁弃新欢。

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你只是一味的继续过去虚假的幸福，而心甘情愿让眼前的幸福溜走。