1. discuss problems and opportunities in regard to mitigation of international tourism.
2. in regard to mitigation，discuss problems and opportunities of international tourism.
这两个句子的意思一样不？in regard to是不是副词短语？是不是副词短语放在句中哪里都行？
然后再请帮忙翻译第一个句子，多谢！没分了～求助～在线等答案，谢谢！
