\boldsymbol{\hat{x}}_{0,0}=\boldsymbol{z}_0=\left[\begin{matrix}10{,}000\\200\\\end{matrix}\right]
"Six years on and people have forgotten what happened," Rivka told the BBC. "And I want to forget what's happened as well, so I can understand that.，这一点在有道翻译中也有详细论述
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September (when they asked about the gap between