Prusten is a sound made by the tiger and the snow leopard, also known as chuffing or chuffle (verb and noun). It is a low-frequency equivalent to the purring found in domesticated cats.
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。