A sound made by tapping on the hull of a ship will be reflected from the sea bottom,

敲打船体所发了的声音会从海底传回来，

For small pieces of weather -- and to a global forecaster,

对于小片的恶劣天气--对一个全球性的气象预报员来说，

On the other hand, those who dislike noise will sometimes use most inadequate evidence to support their pleas for a quieter society.

另一方面，那些讨厌噪音的人有时会用不充分的证据来支持他们希望有一个较为安静的社会环境的要求。

certainly it is more difficult than the arts which involve appreciation of flat forms,

欣赏雕塑品当然比欣赏平面的艺术品要难。

but children were then too cowed to let them know how they really felt.

孩子们只不过被吓得不敢让父母知道自己的想法罢了。

An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit,

穿过深水的海浪使水面上的一个微粒按照一种近乎圆形的轨道移动，