Be aware that policy co-ordination is an essential ingredient for a monetary union to work.

要注意，政策协调是一个货币联盟能否运转的关键。

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Non-instructional information includes complaint, consultation of enrollment and other information, which are essential to educational quality system and rectification in work and macro-policy making.

电大办学中的非教学信息包括投诉信息、招生咨询信息以及周边信息。

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The majority of the work streams take on-board the essential aspects of our future policy for population and migration.

BBC: NEWS | Europe | Guernsey | States passed population strategy