1.This indicates that there is a close relationship between species divergence,nymphal morphology derivation and microhabitat.
形态各异的不同种蜉蝣稚虫生活在不同的小环境,表明种演化和形态变化与环境有密切关。
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.