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会员注册今日单词：
| 单词 | 中文释义 | 英文释义 | 例句 |
| refundable | 可退的（形容词） | (adjective) Describing money which can be returned to the payer (such as a customer) | EXAMPLE: Because our travel plans change frequently, we always try to purchase refundable airplane tickets. 由于旅行计划经常发生变化，我们总是买可退机票。 |
今日短语：
| 短语 | 中文释义 | 英文释义 | 例句 |
| to buckle down | 用心，认真（非正式用语） | (INFORMAL) To focus attention on work, avoiding other distractions | EXAMPLE: The lazy student's parents warned him that he needed to buckle down and improve in school. 那位懒惰学生的父母告诫他要认真学习，提高成绩。 |