tā / gòu mǎi / le / yí fèn / yuán yóu / qī huò hé yuē / xī wàng / zài / jià gé / shàng zhǎng / shí / huò lì

他购买了一份原油期货合约，希望在价格上涨时获利。

He bought a crude oil futures contract, hoping to profit when the price rises.