Seek shade when UV rays are the most intense, but keep in mind that shade structures such as trees, umbrellas or canopies do not offer complete sun protection.
当紫外线最强时，应寻找遮阳处。但要切记，树、伞或遮篷的遮阳结构不能起到完全防晒作用。
Also, black fabric is better. The color can absorb the UV rays to the maximum. This year, black umbrellas with colorful patterns inside are particularly popular.
再者，黑色面料好一些。黑色可以最大限度地吸收紫外线。今年，伞内有五颜六色图案的黑伞特别受欢迎。
Many advertisements and commercials claim that their umbrellas can block both UV rays and the rain.
很多广告都宣称，他们的伞既可以防紫外线，又能挡雨。
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