<P>试试 r R' 在R'的时候用左手无名指带动做M剩下的九十度</P>
<P>这个转法是M2/R2盲拧发明者Stefan Pochmann推荐的“...Obviously I called it "M2 method" because of the prominent M2 move.</P>
<P>I actually do it as L(l'M') like Joel van Noort once suggested, with my left ring finger pulling the M'. ...”</P>
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<P>我感觉快速的时候还是不太习惯</P>