they can locate and steer clear of obstacles -- or locate flying insects on which they feed.

并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。

and so on up to the size of the globe.

如此等等，一直到全球的范围。

But neither psychiatric interviews nor objective tests were able to show any effects upon these American sailors.

但是，不管是进行精神病学的调查访问，还是进行客观的测试，都不能显示噪音对这些美国水兵有任何影响。

From the Skeppsbron and surrounding islands the people watched this thing of beauty begin to spread her sails and catch the wind.

人们从斯开波斯布朗和周围的岛屿前来观看这艘美丽的战船扬帆起航，乘风前进。

what would civilization be like without its benefits?

如果不受其惠，文明将会是个什么样子呢？

and when he flirts with fame, he is taking time off from living with himself,

当他沽名钓誉时，他就脱离了自我生活，