寄生虫

jì shēng chóng parasite; drone

排名

pái míng ranking; ordered list; to rank nth out of 100; to be placed; roll of honor

技术

jì shù technology; technique; skill; CL:門|门[men2],種|种[zhong3],項|项[xiang4]

教程

jiào chéng lecture course; teaching module at university; tutorial; textbook; course of study

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