听听中一。光的速度比声响的速度快。
凭借低缓的进场速度以及急剧升降的性能，飞机的声响不会传到机场之外。
Its low approach speed, combined with steep climbs and descents, would make it inaudible outside the airport.
多拉克说，虽然在距离水牛城机场10英里范围内的居民早就习惯了头顶上飞机轰鸣的声音，但是这一次的声音显然比平时剧烈得多，速度也快得多，发出的声响也很奇怪。
Dworak said while residents of his neighborhood about 10 miles from the Buffalo airport were used to planes rumbling overhead, this one sounded louder than usual, sputtered and made some odd noises.
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