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In Chinese culture, it is believed that people who have fair(浅色的）skin（皮肤）are more beautiful. In western culture, however, the opposite is true-many westerners think tanned skin is prettier. It 1． that different cultures have different ideas of what they think is beautiful.
These cultural meanings of beauty, however, are no 2． important. As more and more people travel overseas, ideas about beauty are being shared among cultures. The Internet has also made it easier for people to share different types of beauty 3． people are always posting pictures on social media. With the help of the Internet, people's views about beauty are always一 4．. People are now able to 5． borrow ideas from other cultures to help them stand out. So what new fashions can we expect to see in the future?
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y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
