21.   The United States and Europe are thriving markets for synthetic drugs.

22.   There is also a thriving secondary market for memberships which has attracted speculators.

a. + market >>共 657
financial 10.17%
emerging 3.43%
asian 3.19%
broader 2.97%
new 2.81%
free 2.60%
european 2.57%
international 2.33%
japanese 2.21%
local 2.04%
thriving 0.05%
thriving + n. >>共 261
business 14.19%
economy 5.68%
industry 5.00%
community 4.59%
market 2.97%
career 2.43%
trade 2.30%
city 2.30%
practice 1.89%
center 1.49%
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