Sunbathing on the beach
沙滩日光浴
Scenario: Sunbathing gives us a healthy tan, but overexposure to the sun’s rays can do more harm than good to our skin.
适用情境：日光浴能为我们带来健康的小麦色肌肤，然而，过度暴晒则弊大于利。

SPF requirement: 50 or more
防晒系数: ≥50

Solution: Keep in mind that you need the strongest sun protection you can get. Look for a thick sunscreen with an SPF of at least 50 that offers broad-spectrum protection. Or better still, a waterproof one that will give you longer-lasting protection. Don’t forget to reapply it every 60 minutes, or whenever you sweat or get wet.
防晒建议：这时候，你需要最强效的防晒保护：一层厚厚的防晒霜，其防晒指数不得低于50，并且要能抵挡所有波长的紫外线。当然，要想取得更好更持久的防护，你需要选择具有防水功能的防晒霜。最后，别忘了每1个小时，或是每次你出了汗的时候都重涂一次防晒。