George Washington didn't have wooden teeth, his actual dentures were made of gold, lead, hippopotamus bones and doggie teeth. Ha! Wood. How pedestrian.
2
根据莫氏硬度表，人类牙齿的硬度比黄金大但比黄铁矿小。
Human teeth are harder than gold but softer than pyrite, according to the Mohs Hardness Scale, which categorizes how easily minerals scratch.
3
乔治·华盛顿并没有木质牙齿，他的假牙是由黄金、铅、河马骨骼和小狗的牙齿构成的。
George Washington didn't have wooden teeth, his actual dentures were made of gold, lead, hippopotamus bones and doggie teeth.
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