英语翻译The two regions were merged into a single operation under Smith,the company's former head of China and the US,its most successful market region.还有,奇怪的是为什么最后的region没有复数?

问题描述:

英语翻译
The two regions were merged into a single operation under Smith,the company's former head of China and the US,its most successful market region.
还有,奇怪的是为什么最后的region没有复数?

译文如下:
这两个区域被合并成为史密斯管理下一个单一的公司,史密斯是该公司在中国地区和美国地区的前任最高管理者,其中美国是其最成功的地区市场.
single operation 意为:单一的公司
最后的region指的是 the US,所以是单数.
不知道我的回答能不能解你疑惑?