rarefaction

[.rɛəri'fækʃn]

n. 稀薄, 稀薄化

例句与用法:

It isn't a rare bird, just a common or garden sparrow.

那不是稀有的鸟,只不过是普通的麻雀。

This rare bird has become an endangered species.

这种珍禽已成为濒临灭绝的物种。

词形变化:

形容词: rarefactive |

详细释义:

n.

稀薄化; 稀释