an area of small loose stones, especially on a mountain, which may slide when you walk on them 碎石坡；岩屑堆 
Oxford Collocations DictionaryScree is used before these nouns:- slope
Word Originearly 18th cent.: probably a back-formation from the plural screes, from Old Norse skritha ‘landslip’; related to skrítha ‘glide’.
