The teacher's task is to awaken joy in creative expression and knowledge.
Waste is a design flaw, not an inevitability in aquaculture.
思考的过程不仅仅是把一件事加到另一件事上;它在于观察结构特征和结构要求的操作。
A picture is a representation, an illusion, a piece of magic, so what you see is not what you see.