Because at that time, the undergroundeconomy had not displayed the inflation tendency, the research scope was quite limited.
但由于当时地下经济并没有表现出膨胀的趋势,所以研究的范围还是比较有限的。
2
This thesis is basically concerned with UndergroundEconomy, an area that remains to be fully understood but has attached increasing attention.
本文研究一个还没有被充分认识但日益受到人们关注的经济活动领域——地下经济。
3
All bloggers know that the way to get links is to engage in the secret undergroundeconomy of sucking up to bloggers with higher Technorati rank than you.