1.This indicates that there is a close relationship between species divergence,nymphal morphology derivation and microhabitat.
形态各异的不同种类蜉蝣稚虫生活在不同的小环境,表明种类演和形态变与环境有密切关系。
2.Spenser's continuation and divergence from the Arthurian romance tradition are discussed in order to clarify the dialectical equiponderant relationship between romance and allegory of the poem.