transparency
n
1 [U] state of being transparent 透明; 明显; 清楚.
2 [C] photograph printed on transparent plastic, so that it can be viewed by shining a light through it; slide1(4a) 幻灯片; 透明正片.
You were very kind. You brought out all your jewellery and you told me I could take anything I wanted. There were so many beautiful things that it was hard to choose. And then I saw a lovely diamond necklace with a big blue stone in the centre.