As the city and local economy began to prosper, it became clear that a new shipping channel  between Galveston and nearby Houston was needed.

随着城市和地方经济开始繁荣，加尔维斯顿和附近的休斯敦之间需要一条新的航运通道变得很明显。

" The cause of this decline, " they write, " is hotly debated." Their argument is that a major culprit is noise pollution, from international shipping channels.

他们写道：“这种下降的原因引起了激烈的争论。”他们的论点是，罪魁祸首是来自国际航运通道的噪音污染。