求问greater than 和more than区别？

Qiaolululu

The gyrfalcon, an Arctic bird of prey, has survived a close brush extinction；its numbers are now five times greater than (more than) when the uae of DDT was sharply resticted in the early 1970's.
这句话里为什么要用greater than 呢？来源og verbal分册。英文解析没看懂?！求解！

yanhuan0529

Numbers, use greater than, not more than，固定搭配

Qiaolululu

yanhuan0529 发表于 2019-11-22 04:51
Numbers, use greater than, not more than，固定搭配

感谢！