单词	undulation
释义	undulateun‧du‧late /ˈʌndjəleɪt $ -dʒə-/ verb [intransitive] Verb Table VERB TABLE undulate Simple Form Present it undulates Present undulate Past it, they undulated Present perfect they have undulated it has undulated Past perfect it, they had undulated Future it, they will undulate Future perfect it, they will have undulated Continuous Form Present they are undulating it is undulating Past they were undulating it was undulating Present perfect they have been undulating it has been undulating Past perfect it, they had been undulating Future it, they will be undulating Future perfect it, they will have been undulating Examples EXAMPLES FROM THE CORPUS As the land undulated, waterfalls appeared and disappeared. But though Rechtauk had disappeared and the forest been hewn down, the land was still soft and undulating, still green. By undulating this, it drives itself forwards - or, with equal ease, backwards. I saw various ridges to my right and left, undulating over the huge and imposing landscape that now was exposed. It differs from the similar E. macrophyllus in its smaller, more rounded leaves and the leaf margins not being undulate. Joey Meeson watched as Lizzy danced, her body undulating to the thumping rhythm of the acid house music. The grass rolled in waves, glistening and gleaming as it undulated. The run culminated in open, undulating slopes towards the Mer de Glace. word sets WORD SETS► Shapes/Patterns arabesque, nounarc, nounarch, nounball, nounball, verbbar, nouncheck, nouncheckered, adjectivechevron, nouncoil, nounconical, adjectivecorrugated, adjectivecrescent, nouncrisscross, verbcrosswise, adverbcruciform, adjectivecube, nouncurl, verbcurl, nouncurvature, nouncurved, adjectivecurvy, adjectivecylinder, nouncylindrical, adjectivediagonal, adjectivediamond, noundisc, noundome, noundouble helix, nounellipse, nounelliptical, adjectivefloral, adjectiveformation, nounformless, adjectivegeometric, adjectiveglobe, nounglobular, adjectiveharlequin, adjectiveheart, nounhemisphere, nounheptagon, nounhexagon, nounhoneycomb, nounhooked, adjectivehump, noun-iform, suffixlattice, nounMaltese Cross, nounmoon, nounmottled, adjectiveoblong, adjectiveoctagon, nounoval, nounovoid, adjectiveparallelogram, nounpeak, nounpentagon, nounpentagram, nounperimeter, nounpointed, adjectivepyramid, nounquadrangle, nounquadrilateral, nounradial, adjectiverectangle, nounrectangular, adjectiverectilinear, adjectiveregular, adjectivereticulated, adjectiverhomboid, nounrhomboid, adjectiverhombus, nounroll, nounround, adjectiveround, nounround, verbrounded, adjectivesemicircle, nounsolid, nounspatial, adjectivesphere, nounspiral, nounspotted, adjectivesquare, adjectivesquared, adjectivestar, nounstripe, nounstriped, adjectivestripy, adjectivesymmetrical, adjectivesymmetry, nountabular, adjectivethree-cornered, adjectivethree-dimensional, adjectivetrapezium, nountrapezoid, nountrefoil, nountriangle, nountriangular, adjectivetubular, adjectiveundulate, verbvague, adjectiveveined, adjectiveV-formation, nounwavy, adjectivewhorl, nounwiggly, adjectivezigzag, noun formal to move or be shaped like waves that are rising and falling:  undulating hills—undulation /ˌʌndjəˈleɪʃən $ -dʒə-/ noun [countable, uncountable]
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