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uploads/centring.jpg

centring n.=centering.

He advanced to the centre of the room and said, “good morning, colonel. “ 他走到屋子中間說:“早上好,上校”。

He advanced to the centre of the room and said, “good morning, colonel. “ 他走到屋子中間說:“早上好,上校”。

centriole

He advanced to the centre of the room and said, “good morning, colonel. “ 他走到屋子中間說:“早上好,上校”。