Stars are most easily seen when winds high in the air blow dust and clouds away.
通常如果高空中有风的话,它会把高空中的灰尘与云层吹散,这样星星就能清晰可见。
2
If we didn't do that, the pitch would rapidly descend as we got to the end of the lung balloon, and we'd blow our vocal chords apart with high pressure.