high-level
adjective uk/ˌhaɪˈlev.əl/ us/ˌhaɪˈlev.əl/
（会谈）高层的
If discussions are high-level, very important people are involved in them.
high-level meetings/talks between the two sides 双方的高层会晤／会谈
Compare: high-ranking
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。