| 例句 |
tiersnounpl. of tier one of the units into which a whole is divided on the basis of a common characteristicthe bottom tier of entrants brackets, categories, classes, classifications, divisions, families, genera(also genuses), grades, groups, kinds, leagues, orders, ranks, rubrics, sets, species, types descriptions, feathers, ilks, kidneys, likes, manners, natures, sortsbranches, sections, specialities, specialties, subclasses, subdivisions, subgroups, subspecieses, varietiesbreeds, racesgenerationsheadings, labels, titles |