trade
⇒ 他们在交易股票。
(Tāmen zài jiāoyì gǔpiào.) They are trading shares.
⇒ 新产品开始上市交易。
(Xīn chǎnpǐn kāishǐ shàngshì jiāoyì.) The new products have gone onto the market.
⇒ 电子市场里交易很红火。
(Diànzǐ shìchǎng li jiāoyì hěn hónghuǒ.) Trade in the electronics market is flourishing.