We're going to talk about reducing sounds, cutting off sounds, and connecting sounds.

我们将讨论减少声音、切断声音和连接声音。

The planes a joint Anglo-French venture traveled at more than twice the speed of sound, cutting trans-Atlantic flight times by half.

这是一家英法合资企业，飞机的飞行速度是音速飞机的两倍多，将跨越大西洋的飞行时间缩短了一半。