achieve one's goal和reach one's goal的区别?

问题描述:

achieve one's goal和reach one's goal的区别?
Liu Xiang__his goal of becoming the world champion in 100-metre hurdles in the 28th Athens Olympic Games
A.achieved B.gained C.got D.reached
答案选A为什么?
可是网上也看到有reach goal 表示实现目标

achieve one's goal
reach goal
搭配方式不一样