OAU

例句：

1. 1. OAU is a group of countries that have signed the United Nations Convention on the Rights of the Child.
   OAU是签署联合国儿童权利公约的一组国家。
2. 2. The OAU summit was held in Cairo, Egypt.
   OAU峰会在埃及开罗举行。
3. 3. The OAU has played a significant role in promoting peace and security in Africa.
   OAU在促进非洲和平与安全方面发挥了重要作用。