closed-door past闭关锁国的过去
closed-door discussion闭门会谈
closed-door meeting秘密会议
closed-door mentality闭关心态
closed-door hearing听证会
closed-door decree排外条例
closed-door attitude关门态度;关门立场;骂
Often closed-door常闭式防火门
closed-door session秘密会议
ADJ（形容词） private; barred to members of the public 私人的; 公众禁止的
a closed-door meeting