2 sentences

1. 看到孩子这么懂事，父母感到十分欣慰。

   kàn​dào hái​zi zhè​me dǒng​shì, fù​mǔ gǎn​dào shí​fēn xīn​wèi.

   Seeing their child so sensible, the parents felt very gratified.

   Source: Dong Chinese Dictionary

2. 看到孩子们个个活蹦乱跳，老师感到很欣慰。

   kàn​dào hái​zi men gè​gè huó​bèng​luàn​tiào, lǎo​shī gǎn​dào hěn xīn​wèi.

   Seeing the children all healthy and full of life, the teacher felt very relieved.

   Source: Dong Chinese Dictionary