Economics is the study of the way in which money, industry, and commerce are organized in a society.
His younger sister is studying economics.
他的妹妹在学经济学。
He gained a first class Honours degree in economics.
他获得了经济学的一级荣誉学位。 。
The economics of a society or industry is the system of organizing money and trade in it.
a radical free-market economics policy.
一项激进的自由市场经济政策。
the economics of the third world.
第三世界的经济体制。