That is there is no single a heartedly version of Shakespearean plays.

莎士比亚的戏剧,没有一个固定的版本。

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I expect that if I add -A to A, I should get the guy who plays the role of 0 in this world, which is the vector of no length.

我希望如果用 -A 加上 A,应该得到一个零矢量,也就是一个没有模长的矢量

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