The Olympic Games will be held in our country in four years' time.翻译并解释year后面为什么加's time,

问题描述:

The Olympic Games will be held in our country in four years' time.
翻译并解释year后面为什么加's time,

四年后我国将举行奥林匹克运动会。
加time时加重语气,表示是四年后,

in four years表示也对
in four years' time强调一个整体time
奥运会隔四年举办一次,这句子就强调这个四年吧!