internal variable

例句：

1. 1. The company's decision toinvest in new technology was a strategic movefor the future.
   公司决定投资新技术是对未来的战略举措。
2. 2. The team worked together todevelop a solution that would benefit both parties.
   团队共同努力开发了一个双方都受益的解决方案。
3. 3. Theresearcher found that the internal structure ofthe plant had a significant impact on itsgrowth rate.
   研究者发现植物的内部结构对其生长速率有显著影响。