He did not offer specifics Tuesday about a fifth round of discussions aimed at determining which country has drilling rights to an area rich in oil and gas reserves near Okinawa.

• 他没有具体说明日中两国准备举行第五轮讨论的情况。这次讨论的目的是确定究竟哪一个国家有权开采冲绳附近一处蕴量丰富的石油与天然气田。