| 单词 | 不定期 |
| 释义 | 〔nonscheduled〕Operating without a regular schedule of passenger or cargo flights:不定期的：没有定期的乘客或货物飞行计划而运行的：〔tallage〕An occasional tax levied by the Anglo-Norman kings on crown lands and royal towns.摊派税：盎格鲁－诺曼国王不定期地向王室领地和所管辖城镇征收的税〔drift〕To move leisurely or sporadically from place to place, especially without purpose or regular employment:漂泊：闲适地或不定期地从一个地方到另一个地方，尤指无目的或无固定职业地：〔casual〕casual employment at a factory; a casual correspondence with a former teacher.工厂的临时雇佣人员；与先前老师的不定期通信 |
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英汉汉英双解词典收录301015条英汉双解翻译词条，可根据汉字查询相应的英文词汇，基本涵盖了全部常用汉字的英文读音、翻译及用法，是英语学习及翻译工作的有利工具。