noun🔗Share石化作用 The process of replacing the organic residues of plants (and animals) with insoluble salts, the original shape and topography being retained"The petrification of the ancient tree took millions of years, turning its wood into colorful stone. "这棵古树经过数百万年的石化作用，将木头变成了色彩斑斓的石头。geologyprocesschemistrymaterialsciencebiologyChat with AIVocabulary GamePractice Reading
noun🔗Share麻木不仁，铁石心肠。 Obduracy; callousness"Her complete petrification towards the homeless person's plea for help was shocking. "她对那个无家可归的人的求助竟然如此麻木不仁，铁石心肠，真是令人震惊。charactermindattitudeinhumanChat with AIVocabulary GamePractice Reading
