Subject + 宣布 + Clause/Object
宣布 (xuānbù) is a verb meaning "to announce," "to declare," or "to proclaim." It is used when formally making information known to the public. For example, 宣布结果 means "to announce the results."
公司宣布了新的管理制度。
gōngsī xuānbù le xīn de guǎnlǐ zhìdù.
The company announced a new management system.
总统宣布进入紧急状态。
zǒngtǒng xuānbù jìnrù jǐnjí zhuàngtài.
The president declared a state of emergency.
老师宣布考试成绩已经出来了。
lǎoshī xuānbù kǎoshì chéngjì yǐjīng chūlái le.
The teacher announced that the exam results are out.