词汇	unfold before
释义	unfold before vi.在…面前显露,呈现
随便看	external payments external payments balance external payments position external payments situation External pectinase external pelivimetry external pelvic measurement external pelvimeter external pelvimetry external penetration external performance external pericarditis external perihaemal canal external perimysium external perimysium,perimysium externum External periodical current constraint external periodic force external perpendicular fissure external perspective external perspective center external perspective projection external per-stress external perturbation external pest external pesticide