He chewed the problem over in his mind.
其中的 over 是和 chew 在一起的还是和 in his mind 在一起?
over 和 in 在一起咋这么晕呢?
He chewed the problem over in his mind.
= He chewed over the problem in his mind. 他仔细考虑了这个问题。
chew over
1.仔细考虑:
I'll chew it over for a few days and let you know my opinion. 我先认真考虑几天然后再把我的意见告诉你。
2. 反复讨论;商量:
We must chew the matter over(= chew over the matter)this morning. 我们今天上午必须讨论一下这件事。