He has pointed out that the tree is a useful source of income.
他指出，它成了一个有用的财源。
He has pointed out that the tree is a useful source of income, as tourists have been coming from all parts of the country to see it.
他指出，由于人们从全国各地纷纷前来参观这棵树，它成了一个有用的财源。
He has pointed out that the tree is a useful source of income as tourists have been coming from all parts of the country to see it.
他指出，这棵树是摇钱树，因为旅游者络绎不绝地从全国各地来参观。
He has pointed out that the tree is a useful source of income, as tourists have been coming from all parts of the country to see it.
他指出，这棵树是一个有用的收入来源，因为全国各地的游客都来看这。
He has pointed out that the tree is a useful source of income, as tourists have been coming from all parts of the country to see it.
他指出这棵树是个有用的收入来源，因为游客们从四面八方赶来就是为了看它一眼。
He has pointed out that the tree is a useful source of income, as tourists have been coming from all parts of the country to see it.
他指出这棵树是个有用的收入来源，因为游客们从四面八方赶来就是为了看它一眼。
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