Why does a ballpoint pen stop writing when it falls on the floor?

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How many colors can a 60-yuan magic rainbow pen write in one stroke?

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Five fancy ways to use highlighter.

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Maybe some little tips will be useful to you

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Youxiong New Products | Voice-activated PDA | Simple and small square layout

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Tool hiding techniques!

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Love this issue of voice control! ! Saile Four Seasons Weaving Color Test · Stationery Sharing

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A plastic bottle mineral water pen that is said to be super smooth, am I the only one who got stuck?

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The world's smallest snake can conquer our troublesome red fire ants

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[Calligraphy]Have You Seen Such Silky Writing?|<Can We Kiss Forever>

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What is a stress relief magnetic pen? It can even write on phones and tablets! ?

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My ideal gradient color pen

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One-click decompression! The sound is so healing! I guess the teacher will take away such a fun pen,

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A pen with a split tip? Will it tip over when used for writing?

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The mesmerizing farm machinery of the "human speed bump"

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I've been using the pencil case for three years and it's time to wash it as school is about to start

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Why is this pen so strange?

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Can I blame the pen if my handwriting is not good? (Part 2)

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