她轻轻地拉着缰绳。She pulled gently on the reins.要把马练好,缰绳靴刺不可少.It is the bridle and spur that makes a good horse.只要缰绳轻轻一拉,马就作出反应.The horse answered to the slightest pull on the rein....
Viscosity overwhelms the smallest eddies and converts their energy into heat.粘性制服了最小的旋涡而将其能量转换为热.But their work appears to merge in the study of large eddies.但在大旋涡的研究上,他们的工作看来却殊途同归.Eddies of dust swirled in the road.路上尘埃...