09 December 2006
煎蛋 » 你知道那是什么树吗?
打开页面后有一个交互式动画教程的链接,它会告诉你如何通过研究叶子、种子和果实的特性来辨认大部分的树种,相信掌握这些技巧是一件很有趣的事情,可惜的是,教程动画全是英文的。
01 December 2006
1
(2 marks)
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