Well, what looked like tracer going past the door of the window.

好吧，看起来像是光从窗户边飞过。

But also tracer rounds being fired from multiple enemy aircraft guns.

但也有来自多架敌机机枪光被射出。

The spangled tracer swung lazily up into the sky just below the speed of sound.

闪闪发光光低于音速速度懒洋洋地升上天空。

On the wings of the aircraft, we've got flares, which when we fire the flares, it burns and it emits a smoke.

飞机翼上装有光，一旦发射，光会燃烧并释放烟雾。