It is called "first edition" when first published, If the book has been revised and published again, it is called "second edition", and so on.

第一次出版的称“第一版”或“初版”，如内容经过修改后再出版式的称“第二版”，以下类推。

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So has the United Nations High Commissioner for Refugees, which again called on European countries to fulfill their pledges to temporarily house the displaced.

CNN: More refugees pour into Albania, Macedonia

The search has been called off for the night but was expected to resume again on Tuesday morning.

BBC: Michael Pringle