Today's Sentence
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Instead, they take advantage of a simple principle: that positive and negative charges attract.
Original Video：
How do geckos defy gravity?
Pronunciation Challenge How do geckos defy gravity?
Host : Selina
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Have you ever seen geckos sneaking around your house? I always wonder how they manage to stick on the wall all day. Let's dive into this week's video and find out how they do it.
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