单词	weak lens
释义	weak lens 弱透镜
随便看	Demand for Tax demand for teachers demand for the currency Demand for the new model is outrunning supply Demand for the patented product demand for the petroleum demand for the product of an individual seller demand for tourism Demand for traffic in port demand for transport demand for updated information demand for variety demand for wheat demand frantically demand freedom demand from demand from abroad demand from the company demand fulfillment demand fulfillment percentage demand fulfilment percentage demand-full demand function demand function for money demand furiously