glacial

1. ADJ Glacial means relating to or produced by glaciers or ice. 冰河的; 冰的[技术]

...a true glacial landscape with U-shaped valleys. …U形山谷中真正的冰河地貌。

2. ADJ If you say that something moves or changes at a glacial pace, you are emphasizing that it moves or changes very slowly. 非常缓慢的[usu ADJ n] [强调]

Change occurs at a glacial pace. 变化来得极为缓慢。