重点讲解：
1. come in 出现；流行；
例句：It was just when geography was really beginning to change and lots of new ideas were coming in.
那时正是地理学真正开始发生改变、许多新观念兴起的时候1^,ht2cFMmXsW。
2. be subject to 可能受…影响的；易遭受…的；
例句：The area is subject to devastating seasonal winds.
这个地区常遭破坏性季风的袭击jvHWI@YMd+4zM;C95jx。
3. scale up 增大；增加；提高；
例句：Many companies question their ability to scale up cost-effectively in both countries.
在这两个国家里，许多企业怀疑自己能不能以一种成本高效的方式扩大规模PLXe4DwIdo6xDr(TQ2。
4. state-of-the-art 使用最先进技术的；体现最高水平的；
例句：It's a state-of-the-art security system.
这是最先进的安全系统Yh7xX&#bW1tqIut%haCy。