hierarchy

n.等级制度

hibernate, hibernation, hibiscus, hiccup (also hiccough), hick, hickey, hickory, hidden, hide, hide from sb., hide-and-seek, hide-out (US also hideaway), hidebound, hideous, hideously, hideousness, hiding, hiding-place, hie, hierarchical, hieroglyph, hieroglyphic, hieroglyphics, higgledy-piggledy, high, high chair, High Church, high colour, High Commission, high explosive, high fidelity (also hi-fi), high frequency (abbr 缩写 HF), High German, high life, high pressure, high priest, high road, high school, high season, high spot,