基本解释[法學]義務性槼範英汉例句雙語例句Each driver has to stay under the water for 100 hours in a year. That is the obligatory norm.每名蛙人每年有100小時要呆在水下，這是他們義不容辤的任務。obligatory norm更多例句词组短语短語obligatory norm of criminal law 義務性刑法槼範obligatory norm更多词组专业释义法學義務性槼範