| 单词 | twenty-first (birthday) |
| 释义 | twenty-first (birthday) UK [ˌtwen.ti.fɜ:st'bɜ:θ.deɪ] US [-i.fɝ:st'bɜ:rθ-] noun countable usually singular ■the day on which a person reaches the age of 21 and is traditionally said, in Western societies, to become an adult 21岁生日（西方的成人年龄） •It's Jamie's twenty-first birthday party next Friday.下周五是杰米的二十一岁生日聚会。 |
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