6. exposure n. 暴露，显露； 揭发，揭露； (软片等)曝光
After only a short exposure to sunlight he began to turn red.
I threatened them with public exposure.
An exposure of one-hundredth of a second will be enough.
7. transaction costs 交易成本
It is also the one with the lowest transaction costs.
8. full convertibility 充分可兑换性
9. scheme 计划，方案
When you began to work, you might work out a practical scheme.
10. clarification n. 澄清，净化
The professor's clarification helped her to understand the textbook.
11. indicator 指示物；指示者
He talks about economic growth as a great indicator for freedom, I agree with him.