重金属音乐真正形成于60年代后期。Heavy Metal music really arose in the late 60s.年轻人正在形成毒品有好坏之分的观念。Young people are picking up ideas about good drugs and bad drugs.这些分子链彼此缠绕，形成缆线状的结构。These strands of molecules twine around each other to ...
What you do is you press this button, Daddy, and then you talk into it.当你握紧这个奖杯时, 爸爸你为此而发表了一篇讲演.When you talk into a mobile telephone.手提电话其实是一部双向无线电机.More than two hundred students were in the classroom, the professor ha...
Some of them are like setting a trap ( with obstructions ).有些像是设的陷阱 ( 有障碍物 ).They went ahead of us to clear the road of obstructions.他们走在我们前面清除路上的障碍.Ruler shows the distance in meters to nearest obstructions.标尺显示到最近的阻碍的距...
Really big rock through surgery Treatment , in vitro, or ultrasonic lithotripsy.真是石头特别大的可以通过手术治疗, 或者体外超声波碎石.The key of extracorporeal lithotripsy is its positioning accuracy.体外碎石,关键在于定位精确.To probe the therapic experience...