perishable

Perishable organic materials rarely survive in the archaeological record, making wooden artefacts exceptionally rare.易腐烂的有机材料很少能在考古记录中保存下来，这使得木制人工制品格外罕见。

The perishable nature of papyrus means that only a fraction of ancient Egyptian literature has survived.莎草纸易腐烂的性质意味着古代埃及文学只有极少一部分存留至今。