1. The lava from the volcano eventually solidified into rock formations.
（火山喷发的岩浆最终凝固成了岩石形态。）

2. The cold temperature caused the water in the pond to solidify into ice.
（寒冷的气温使池塘里的水凝固成了冰。）

3. The chef added gelatin to the mixture to help it solidify into a firm dessert.
（厨师在混合物中加入明胶，以帮助其凝固成一个结实的甜点。）

4. The relationship between the two countries solidified after signing a trade agreement.
（两国在签署贸易协议后，关系得到了巩固。）

5. The project team's bond solidified after successfully completing a challenging task together.
（项目团队在一起成功完成了一项具有挑战性的任务后，团队间的联系更加牢固。）

6. The artist used a special technique to solidify the paint on the canvas, creating a unique texture.
（艺术家使用了一种特殊的技术来使画布上的颜料凝固，创造出独特的质感。）