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拼音/秒
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外觀
移至側邊欄
隱藏
來自華夏公益教科書，一個開放世界的開放圖書
<
拼音
注
拼音#拼音聲調標記
秒
是一種極其短的
期
間
，是一
分鐘
中的 60 部分之一。
1
秒
是 1/60
分鐘
的極其短暫的
期間
。
類別
:
書：拼音
華夏公益教科書
