STEM与日常科技·英语30篇（8）
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Self-Adjusting Backpacks Fit Growing Kids
自适应书包适配成长中的孩子
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Straps gently stretch or shrink as shoulders grow.肩带随肩膀发育轻柔延展或收缩。
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Soft sensors detect body shape changes over time.柔软传感器持续感知体型变化。
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No need to buy new backpacks every year.无需每年更换新书包。
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The frame stays strong but flexes where needed.背负框架坚固，但关键部位可灵活调节。
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Kids feel comfortable walking to school each day.孩子每天步行上学都感到舒适。
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Parents adjust settings once per semester only.家长每学期仅需调整一次设置。
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Built-in lights blink softly for safety after dark.内置灯光在夜间柔和闪烁，保障安全。
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All parts are easy to clean and replace.所有部件均易于清洁和更换。