1.It has served an extemporary apprenticeship; it wants no drilling; it never ranks in the awkward squad; it has no left hand, no deaf ear, no blind side.

它需要一个用事先准备，张嘴就说见。它需要刻苦钻研，在那些愚从来就具备这种本领；它是信手拈来，对周围一切洞若观火。