unusually a

In 1967, Edgerton's side-scan sonar systems revealed a large, unusually shaped object, which McKee believed was the Mary Rose.

1967年，埃杰顿的侧扫声纳系统发现了一个巨大的、形状异常的物体，麦基认为它就是玛丽·罗斯号。

He points out that climate data obtained from slow-growing corals around the Pacific indicate a series of unusually frequent El Ninos around the time of the Lapita expansion.

他指出，从环太平洋缓慢生长的珊瑚中获得的气候数据表明，在拉皮塔扩张时期，厄尔尼诺现象曾频繁爆发，这很不寻常。

It turns out to be a sort of high-quality, unusually rigorous coffee-table book, designed to be dipped into rather than read from beginning to end.

它其实是一本高质量、异常严谨的咖啡桌书籍，写作的初衷是让读者大致浏览里面的内容，而不是从头读到尾。