Word: 回国 (huíguó)

听到消息，他当即决定回国。

Tīngdào xiāoxi, tā dāngjí juédìng huíguó.

On hearing the news, he decided at once to return home.

她一回国就投入了新工作。

Tā yì huíguó jiù tóurùle xīn gōngzuò.

As soon as she returned home, she threw herself into her new job.

家里突然发生变故，他只好回国。

Jiālǐ tūrán fāshēng biàngù, tā zhǐhǎo huíguó.

Something unforeseen suddenly happened at home, so he had to return to China.

运动员们凯旋回国了。

Yùndòngyuánmen kǎixuán huíguó le.

The athletes have returned home victorious.