4 sentences

1. 该项目是近四年研究的结晶。

   gāi xiàng​mù shì jìn sì nián yán​jiū de jié​jīng.

   This project is the culmination of nearly four years of research.

   Source: OpenSubtitles

2. 这部作品是全体员工智慧的结晶。

   zhè bù zuò​pǐn shì quán​tǐ yuán​gōng zhì​huì de jié​jīng.

   This work is the crystallization of the collective wisdom of all staff members.

   Source: Dong Chinese Dictionary

3. 糖浆冷却后开始结晶。

   táng​jiāng lěng​què hòu kāi​shǐ jié​jīng.

   The syrup began to crystallize as it cooled.

   Source: Dong Chinese Dictionary

4. 雪花是水气在空中形成的结晶。

   xuě​huā shì shuǐ​qì zài kōng​zhōng xíng​chéng de jié​jīng.

   Snowflakes are crystals formed from water vapor in the air.

   Source: Dong Chinese Dictionary