如何利用湄公河是一个存在争议的问题。
One controversial issue has been use of the Mekong River, itself.
参加者不需要离开家就可以使存在争议的问题得以解决。
Problems in dispute can be settled without the participants leaving their homes.
警察能否以其特殊的职业身份出庭作证一直都是存在争议的问题。
Whether the police can serve as a witness at court is a question at issue.
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