And I don't know why, but since time immemorial that is the way computer scientists have drawn trees.
叶子是在最下面的,我不知道为什么,但从记事以来他们就是这么画树的,这也许就是为什么我们。
No. Everybody's been using that, sort of since time immemorial or at least since the sixteenth century.
不,每个人都在用它,这个进程可能可以追溯到太古时期,不过至少16世纪。
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