单词	catalytic cracker
释义	catalytic cracker noun : the unit in a petroleum refinery in which cracking is carried out in the presence of a catalyst Word History First Known Use 1947, in the meaning defined above
随便看	aune aunes Aung San Suu Kyi Aunis Aunjetitz aunt Aunt Jericho aunt jerichos aunt sallies Aunt Sally aunt-in-law aunthood aunthoods auntie aunties auntlier auntliest auntlike auntly aunts aunts-in-law auntsary aunty aur aura

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