gǔ / shì / lǐ / de / chǎo / jiā / jīng / cháng / zài / duǎn / shí / jiān / nèi / mǎi / mài / gǔ / piào

股市里的炒家经常在短时间内买卖股票。

Speculators in the stock market often buy and sell stocks within a short period of time.