稀
一性;the rarity of the condition.
难得
条件。
见；珍贵；稀薄；珍品（需用复数）the rarity of the condition.
难得条件。
the rarity of earthquakes there has lulled people into a false sense of security.
很少发生地震——它让大家放松了警惕，误以为安全。
The stone forests are small in Guangxi, but they arc characteristic of diversity, typicalness and rarity and worthful looking.
广西石林地貌是难得、不可再生旅游资源，必须进行合理开发与保护。
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