cancer parasitism癌寄生性
occasional parasitism偶然寄生
epi parasitism重寄生
concurrent parasitism兼性寄生
obligatory parasitism专性寄生
parasitism rate寄生率
direct parasitism菌寄生
parasitism effect寄生效应
tertiary parasitism三次寄生
N(名词) the relationship between a parasite and its host 寄生