中英释义：
双语例句
野营的首要规则就是保持营地的清洁。
The first rule of camping is to keep a clean camp site.
尤瑞·奥洛夫：军火贸易的首要规则是：永远不要被自己销售的武器击中。
Yuri Orlov:The first and most important rule of gun-running is: Never get shot with your own merchandise.
重点词汇
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首要
primary; first; prime; chief; main; leading; principal; foremost; dominant; cardinal; paramount; primacy; chief importance; of the first importance
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规则
rule; regulation; law; weak; methodology; code; dictate; canon; regular; systematic; rolling; by the rules; according to the rules