<span title=克>kè</span> <span title=莱>lāi</span> <span title=顿>dùn</span> - <span title=克>kè</span> <span title=里>lǐ</span> <span title=斯>sī</span> <span title=坦>tǎn</span> <span title=森>sēn</span> Clayton Magleby Christensenzuòpǐnlièbiǎo