| 单词 | 四个一组 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔four〕Something having four parts, units, or members, such as a musical quartet or a four-cylinder engine.四个一组之物：四个（人或物）一组，如音乐四重奏，四缸发动机等美国传统〔four〕The boxes were stacked in fours.箱子四个一组堆在一起。朗文当代〔quaternary〕Consisting of four; in fours.由四部分组成的；四个一组的美国传统〔quaternion〕A set of four persons or items.四个一组：四个人或项目为一组美国传统〔tetrad〕A group or set of four.四个一组美国传统〔tetrad〕Botany A group of four cells, as of spores or pollen grains formed by division of one mother cell.【植物学】 四分体：四个一组的来自母细胞分裂的细胞，如孢子或花粉粒美国传统〔tetramerous〕Botany Having flower parts, such as sepals, petals, and stamens, in sets of four, as in the evening primrose.【植物学】 四重的，四个一组的：有花的部分的 ，如萼片、花瓣和雄蕊，四个一组，如在月见草中美国传统 |
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