2 sentences

1. 关心国事是每个公民的责任。

   guān​xīn guó​shì shì měi gè gōng​mín de zé​rèn.

   Caring about national affairs is the responsibility of every citizen.

   Source: Dong Chinese Dictionary

2. 总统阁下将于今日下午抵达北京进行国事访问。

   zǒng​tǒng gé​xià jiāng yú jīn​rì xià​wǔ dǐ​dá Běi​jīng jìn​xíng guó​shì fǎng​wèn.

   His Excellency the President will arrive in Beijing this afternoon for a state visit.

   Source: Dong Chinese Dictionary