22. Since Apple's iPhone and iPad were introduced, smartphones and tablets have begun to undermine the cosy duopoly that dominates handheld digital games.
23. They had an incentive to lobby Congress -- both for expanding homeownership and for protecting and exploiting their government-sponsored duopoly status.
他们有种游说国会的倾向——既是为了让更多人居者有其屋,也是为了保护和利用他们两家二分天下的局面。
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24. Until now, the VAT paid by Sky's subscribers has been half the normal 20% rate, a tax break designed to promote an alternative to the existing "duopoly".
25. When he failed, he took over Phillips, a smaller auction house, with the aim of breaking the duopoly of Sotheby's and Christie's at the top of the market.
26. When he failed, he took over Phillips, a smaller auction house, with the aim of breaking the duopoly of Sotheby's and Christie's at the top of the market.