1.This indicates that there is a close relationship between species divergence,nymphal morphology derivation and microhabitat.
形态各异不同种类蜉蝣稚虫生活在不同小环境,表明种类演化和形态变化与环境有密切关系。
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.