当事国【英】

the country involved

译文来源

http://et.china-embassy.org/eng/zgxx/t752288.htm

例句

1. 根据《联合国宪章》和国际人道法，保护平民的责任首先在于当事国政府。。——《第65届联合国大会中国立场文件》

1. The responsibility to protect civilians rests first with the government of the country involved under the Charter of the United Nations and the international humanitarian law.—Quoted from Position Paper of the People’s Republic of China at the 65th Session of the UN General Assembly