hái / zi / men / zài / yuàn / zi / lǐ / wán / de / hěn / shēng / qù / zhí / dào / tiān / hēi / cái / huí / jiā

孩子们在院子里玩得很生趣，直到天黑才回家。

The children had a lively and enjoyable time playing in the yard and did not go home until dark.