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Pronunciation ChallengeHow to Protect the Eyes from Blue Light - 5 Tips

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Today's Sentence

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How to Protect the Eyes from Blue Light - 5 Tips
Mainly in that they increase your ability to see better in low-light situations and it improves contrast between colors.
Original Video：How to Protect the Eyes from Blue Light - 5 Tips

Key Vocabulary

1. contrast

contrast

[ˈkɑːn.træst](n.)

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