To look at flowers in a mirror; to perceive something beautiful or desirable that is illusory, unattainable, or merely an illusion.
她对时尚杂志上那些华丽的服饰心生向往，却也知道那对她而言不过是镜里观花。
She yearned for the gorgeous outfits in fashion magazines, but she also knew they were just like flowers in a mirror for her.
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