20分
Kid Inventors Innovating... Chicago-Style
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- ビジネスニュース
How to avoid getting thirsty on your way home from school, stop spilling the OJ, and provide shelter in a disaster.
Welcome to the Chicago Student Invention Convention, where kid inventors show off their newest creations!
How to avoid getting thirsty on your way home from school, stop spilling the OJ, and provide shelter in a disaster.
Welcome to the Chicago Student Invention Convention, where kid inventors show off their newest creations!
20分