非官方的用英语怎么说？

非官方的

例句

• Local authorities are likely to refuse to hire facilities to unrecognised martial arts organisations. 当地的主管机构可能会拒绝向非官方的武术组织出租设备。
• The unofficial Maker Faire mascot is this robotic giraffe, known as the Rave'Raff. 非官方的设备费尔吉祥物是这个机器人长颈鹿, 因为狂欢'拉夫称.
• The president is paying a private visit to his neighboring country. 总统正在对邻国作非官方的访问.
• Unofficial estimates put the figure at over two million. 非官方的估计数字为200万以上。