齿轮运动

team sport───n.团体性运动

team sports───团队运动

wear shorts───穿短裤

car port───简易车库

gear shift───使换中档

good sport───n.输得起的运动员

marsport───三月

He found it in the 19 perilous sport called free climbing. Free climbers use no ropes or gear.───他发明了徒手攀岩的冒险运动，攀岩者不用绳索也不用绞轮。

And the transmission of cross helical gear can transmit because of their sport of crossing two axles and power widely application neither parallel nor intersect.───而交错轴斜齿轮传动由于其可以传递既不平行又不相交的两轴之间的运动和动力而被广泛地应用。