求翻译：会议在友好和信任的气氛中进行，并富有建设性。与会各方注意到，近年来湄公河流域走私毒品、武器弹药等犯罪活动突出，频繁发生四国国籍船舶在航行时遭武装人员敲诈勒索、抢劫、枪击等事件。特别是今年10月5日两艘货船在湄公河水域遭袭，造成13名中国船员遇害，对湄公河流域航运安全造成重大威胁；认为有必要加强四国执法部门在湄公河流域的执法安全合作，并采取有效措施打击危害本流域安全的跨国犯罪活动。是什么意思？

The meeting was conducted in an atmosphere of friendship and trust, and constructive. Participants noted that the smuggling of narcotics, weapons and ammunition, and other criminal activities in the Mekong River Basin in recent years highlight the frequent occurrence of Shikoku nationality of the sh

正在翻译，请等待...

The conference carries on in friendly and the trust atmosphere, and rich constructive nature.Attend

In the meeting in an atmosphere of friendship and trust, and constructive. Participants noted that, in recent years, criminal activities such as smuggling of drugs, weapons and ammunition in the Mekong basin highlights, frequently occur when vessels sailing in the four countries by armed men, such a