Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
양어는 지속 가능한 어업을 위한 중요한 방법입니다.yang-eoneun jisok ganeunghan eob-eul wihan jungyohan bangbeob-imnida.Aquaculture is an important method for sustainable fishing.