比赛结果还没有正式宣布。

Bǐsài jiéguǒ hái méiyǒu zhèngshì xuānbù.

The competition results have not been officially announced yet.

他们在公园里做环保宣传。

Tāmen zài gōngyuán lǐ zuò huánbǎo xuānchuán.

They are doing environmental protection publicity in the park.

学校在网上宣布了放假的通知。

Xuéxiào zài wǎngshàng xuānbù le fàngjià de tōngzhī.

The school announced the holiday notice online.