I see,長見識了，美國的數學安排好奇怪，讓孩子跳幾何，代數2，卻要重複calAB and calBC:)

來源: 快樂的小鳥於 2025-02-11 10:04:28 [舊帖] [給我悄悄話] 本文已被閱讀：次

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