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打了遮阳伞就不会被晒黑了?买不好or用不对都会“破防”!
遮阳伞是许多人防晒的必备工具。然而,很多人在使用遮阳伞后,仍然发现皮肤被晒黑。这不禁让人质疑:遮阳伞真的能防晒吗? 其实,遮阳伞的防晒效果,取决于多种因素。正确选择和使用遮阳伞,才是关键。 01、遮阳伞的防晒原理 ...
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