习惯 风俗 动词单用海关 封建制度下定期服劳役 缴纳租税 自定义 偶用作关税
The idiom and custom verb is used alone. Under the feudal system of customs, it is defined to perform regular labor service and pay taxes. It is also used occasionally as a customs duty
以上为机器翻译结果，长、整句建议使用 人工翻译 。