3 sentences

1. 寒暑交互，岁律更新。

   hán​shǔ jiāo​hù, suì​lǜ gēng​xīn.

   Seasons alternate, and the rhythm of the year is renewed.

   Source: Dong Chinese Dictionary

2. 这个软件的交互设计非常符合用户习惯。

   zhè gè ruǎn​jiàn de jiāo​hù shè​jì fēi​cháng fú​hé yòng​hù xí​guàn.

   The interactive design of this software fits user habits very well.

   Source: Dong Chinese Dictionary

3. 不同文化之间的交互促进了彼此的理解。

   bù​tóng wén​huà zhī​jiān de jiāo​hù cù​jìn le bǐ​cǐ de lǐ​jiě.

   Interaction between different cultures promotes mutual understanding.

   Source: Dong Chinese Dictionary