单词	be up to
释义	be up tophr.① 適合；勝任
随便看	variational problem variational psychology variational solution variational technique variational wave function variation area variation between classes variation calculus variation center variation chart variation coefficient variation-- continuous variation; continuous variation curve variation derivative variation diagram variation diagram (of igneous rocks) variation diagram(of igneous rocks) variation-- discontinuous variation; discontinuous variation--dissociation (bacterial) variation, diurnal variation due to an influence quantity variation equation variation factor