Then, in a deep bellowing voice, he proposed a game.

接着，他以低沉轰隆的声音要求玩一个游戏。

These scientists think that dinosaurs probably made deep bellowing or roaring noises.

这些科学家认为恐龙可能会发出低沉的吼叫或咆哮声。

Rapid and small vibrations create high-pitched, quiet tones, while slow, large vibrations produce deep, bellowing rumbles.

快速而小的振动会产生高音调、 安静的音调，而缓慢、 大的振动会产生深沉、 咆哮的隆隆声。