concept stock的用法和樣例：
例句
- China Concepts Stock is a set of stock of companies whose assets or earnings have significant activities in Mainland China.
中國概念股是指一系列以在中國大陸的資產或營收為其主體組成部分公司的股票。 - Companies listed companies are currently the most pure concept stock futures, while in the futures market, China is among the best medium-term strength.
公司是目前上市公司中最為純正的期貨概念股，同時在期貨市場中，中國中期的實力也是名列前茅。
