1. It is absurd to look for a well, at random, in the immensity of the desert. 想在一望无际的沙漠之中，去找一口井，可真是难上加难。
2. Immensity seemed thrown open there. What lay below was not water, it was a gulf. 无边辽阔的天地好象在这里开了一个口子，下面的不是水而是深谷。
3. Our imaginations become aware of the vast distance of space, the immensity of the earth and huge improbablity of our own existence. 我们的想像力开始明白空间距离的巨大，地球的巨大，还有我们存在具有巨大的不可能性。
英英解释
n.
1. unusual largeness in size or extent or number
