短語詞組短語customs s union 關稅同盟customs unionscustoms union 關稅同盟West African Customs Union 西非關稅聯(lián)盟The Customs Union Issue 關稅同盟問題incomplete customs union [稅收]不完全關稅同盟;不完全的關稅同盟South African Customs Union 南部非洲關稅聯(lián)盟west africa customs union 西非關稅同盟 返回 customs union