rareness什么意思
名词稀薄
1. 稀薄:rarely 很少地 | rareness 稀薄 | rarer 稀罕的
1. Red mullets are sometimes called " giant pandas in water " in recognition of their rareness.
rareness
noun
1. danci.911cha.com
1. noteworthy scarcity
Synonym: rarity infrequency