单词	angelica lactone
释义	angelica lactone noun : either of two lactones C5H6O2 related to angelic acid Word History First Known Use 1885, in the meaning defined above
随便看	steam valve steam vessel steam whistle steam-distill steam-heated steam-turbine locomotive steamblaster steamboat steamboat Gothic steamboat ratchet Steamboat Springs steamboating steamboatman steamboatmen steamboats steamed steamed up steamer steamer chair steamer duck steamer rug steamer trunk steamered steamering steamers

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