这是一届十分有意义的会议，在此，我荣幸地向所有与会人员致以问候。加利福尼亚为能与大家一起参加“世界地球日”的活动而感到骄傲。
It is a pleasure to send my greetings to all those gathered for this fantastic conference. California is proud to join you in celebrating Earth Day.
这是一届十分有意义的会议，在此，我荣幸地向所有与会人员致以问候。加利福尼亚为能与大家一起参加“世界地球日”的活动而感到骄傲。
It is a pleasure to send my greetings to all those gathered for this fantastic conference. California is proud to join you in celebrating Earth Day.
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