When that happens, many trees like walnuts, oaks and pines, rely 30 exclusively on so-called "scatter-hoarders, " such as birds, to move their seeds to new localities.
2016年12月六级真题（第一套）阅读 Section A
柯林斯高阶英汉双解学习词典释义
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A pine tree or a pine is a tall tree which has very thin, sharp leaves and a fresh smell. Pine trees have leaves all year round.