n. 

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extract,
extractable,
extractant,
extracted,
extracter,
extractible,
extracting,
extraction,
extractionflask,
extraction-step,
相似单词
vickers,
Vickers-hardness,
Vicki,
Vickie,
Vicky,
vicomte,
vicomtesse,
vicrugon,
victim,
victimise,