双头，因该村座落在两座小山头之间的交界地，故名。
双头垄断 duopoly ; [经] Duopoly
双头狗 Orthrus
双头螺栓 [机] stud ; bolt ; double end bolt ; double armed bolt
双头鹰 double-headed eagle ; Double Eagle
双头龙 Jakiro ; Doublecross ; jakiro
双头扳手 [五金] Double-ended spanner ; double-ended wrench ; double-head wrench
双头拉链 zipper with double sliders ; two-way separating zip ; double zipper
双头扳子 double-ended spanner
双头牙螺丝 DOUBLE END SCREWS HANGER BOLT
2010年，澳大利亚的双头短尾蜥蜴。
你知道这个世界上有一种叫做双头白化蛇的生物吗？
Have you ever known there are such creatures as an albino two-headed snake?
双头垄断最终将减少美国用户的选择余地，而且很难逆转，所以最好阻止这种现象的出现。
A duopoly would in the end reduce choice for American consumers, and be hard to reverse. Best to block it.
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