在游泳、跑步以及日光浴时，由于蒸发、出汗或淋洗而导致防晒霜更加严重的损失。
Activities such as swimming, running and even sunbathing cause further loss of sunscreen from the skin due to evaporation, sweating or wash off.
出汗：由皮肤排出自表皮直接蒸发成蒸气的水分或由汗腺分泌并蒸发以冷却身体的液体。
Perspiration: Fluid given off by the skin as vapour by simple evaporation or as sweat actively secreted from sweat glands to evaporate and cool the body.
出汗：由皮肤排出自表皮直接蒸发成蒸气的水分或由汗腺分泌并蒸发以冷却身体的液体。
Perspiration: Fluid given off by the skin as vapour by simple evaporation or as sweat actively secreted from sweat glands to evaporate and cool the body.
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