I learned the word "Ultraviolet ray" today. Tambaboon English IELTs Lab Sydney Australia,

In Australia, I think ultraviolet ray is stronger than Japan.
Therefore, we should be careful the skin cancer or eye damage.

Even on overcast days ultraviolet rays still penetrate cloud cover.
曇りの日でも紫外線は雲の覆いを突き抜けて来る

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