But in practical preparation, "speedbarrier" is knotty enough because of the dash success impediments.
在实际训练中，经常产生影响和阻碍短跑成绩提高的令教练员十分棘手的“速度障碍”。
2
A physicist from the University of Surrey, Jim Al-Khalili, believes that the current consensus is correct and that the light-speedbarrier is impossible to surpass.
萨里大学物理学家Jim al - Khalili相信现在的共识是正确的，光速障碍是不可能克服的。
3
As the jet plane rushed through the air, its speed broke the sound barrier and produced great heat.