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<h2>一、今日词汇（Today‘s words）</h2><ul> <li><strong>西瓜子</strong></li></ul><blockquote><strong>Pinyin</strong>: xī guā zǐ<br><strong>English</strong>: watermelon seeds<br><strong>Example sentence</strong>: I love snacking on watermelon seeds during the summer.</blockquote><ul> <li><strong>上牙床</strong></li></ul><blockquote><strong>Pinyin</strong>: shàng yá chuáng<br><strong>English</strong>: upper jaw<br><strong>Example sentence</strong>: The dentist examined my upper jaw to check for cavities.</blockquote><ul> <li><strong>牙仙</strong></li></ul><blockquote><strong>Pinyin</strong>: yá xiān<br><strong>English</strong>: tooth fairy<br><strong>Example sentence</strong>: The tooth fairy left a small gift under my pillow after I lost my tooth.</blockquote><ul> <li><strong>踢键子</strong></li></ul><blockquote><strong>Pinyin</strong>: tī jiàn zǐ<br><strong>English</strong>: kick the small wooden ball<br><strong>Example sentence</strong>: In ancient China, children used to play kick the small wooden b...