thereafter afterward 用法区别

没有什么本质区别,都是副词,只是在时间上用afterward显得自然,在逻辑上thereafter显得严密.
afterwards :at a later time; subsequently;
when another thing has been done
Let's eat first and dance afterwards
thereafter :after that; from then on; subsequently.
When you reach the town,thereafter you must find your own way.