易混淆的单词： Dihydroxyacetone

These " tans in a bottle " contain dihydroxyacetone ( dha ) , which gradually stains the dead cells in your skin 's outer layer .

这些“在瓶子里晒黑”的人有二羟基丙酮，一种可以逐渐保持皮肤外层死亡细胞的物质。