对太阳能电池板而言，电池面板内部的导体元件必须采用既透明，电导率又高的材料进行制作，目前用来制作这种导体元件的材料主要是铟和锡元素的氧化物 （ITO），不过ITO材料非常昂贵。
Conductors of electricity on solar panels ideally must be transparent and highly conductive. One solution currently used is indium tin oxide (ITO); however, ITO is very expensive.
星期一晚上，这对情侣至巴特锡公园的一个公司购买了一棵6英尺高的圣诞树，店员还送给他们了许多槲寄生。
The pair were spotted buying a 6ft-tall tree from a firm in Battersea Park on Monday night before staff gave them bunch of mistletoe.
我听说盘子是由锡铅合金制成的，番茄中的高酸物质会使盘子中的铅污染食物，引起中毒。
B - I heard plates were made of pewter and the high acid content of the tomato caused lead from the plate to poison the food.
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