他在北京经商多年。
tāzài běijīng jīngshāng duōnián 。
He has been doing business in Beijing for many years.
我想经商，开一家自己的公司。
wǒxiǎng jīngshāng ， kāi yījiā zìjǐ de gōngsī 。
I want to do business and start my own company.
他们打算经商，进行国际贸易。
tāmen dǎsuàn jīngshāng ， jìnxíng guójì màoyì 。
They plan to engage in business and conduct international trade.