hypernea

例句：

1. 1. The aircraft reached hypersonic speeds at Mach 2.
   飞机以马赫2的速度达到了超音速。
2. 2. The spacecraft flew through the atmosphere at hypersonic velocity.
   宇宙飞船以超音速穿越大气层。
3. 3. The missile was launched at hypersonic speeds to reach its target.
   导弹以超音速发射，以到达其目标。