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Money really does grow on trees – at least in Australia. 树上真的可以长黄金——至少在澳大利亚是如此。 Scientists have found gold in the leaves of eucalyptus trees. 科学家们在桉树树叶里找到了黄金。 The particles are much too small to be seen with the naked eye but have been detected using a type of x-ray that is especially good at picking up trace amounts of metals and minerals. 这种树叶中含有的黄金粒子十分微小，不足以凭肉眼观察到，但是科学家们通过一种专门探查微量金属和矿物的X射线仪器发现了它们。 | 
