trading
noun [ U ] uk/ˈtreɪ.dɪŋ/ us/ˈtreɪ.dɪŋ/
mainly UK买卖；贸易；营业；生意
the activity of buying and selling goods and/or services
She doesn't approve of Sunday trading (= shops being open on Sunday). 她不赞成星期天商店开门营业。
（股票、货币的）交易
the buying and selling of shares and money
The stock market moved ahead slightly in active trading today. 今天，股市在活跃的交易中略有增长。
See also: insider dealing