Pierson went to bed very excited about the prospect of the tooth fairy financially compensating him for his double loss.
小皮上床睡觉时高兴坏了，一个劲幻想牙仙会怎样弥补他双份的损失。
2
Researchers conducted double-blind studies with children and determined that genetics have a much greater influence on hyperactive dispositions than a sweet-tooth diet.
研究人员进行了双盲的比对实验，结果表明基因对多动的影响比吃糖大多了。
3
Based on basic theory of maximum error minimum method, double arc parameters for normal tooth outline in rectangle spline hob are optimized to obtain tooth outline in workpiece with minimum error.