这位运动员首次参加奥运会就获得了金牌。

Zhè wèi yùndòngyuán shǒucì cānjiā Àoyùnhuì jiù huòdé le jīnpái.

This athlete won a gold medal in their first Olympic Games.

该公司首次公开发行股票，引起了市场关注。

Gāi gōngsī shǒucì gōngkāi fāxíng gǔpiào, yǐnqǐ le shìchǎng guānzhù.

The company's initial public offering of stock attracted market attention.

科学家们首次在火星表面发现了水的痕迹。

Kēxuéjiāmen shǒucì zài Huǒxīng biǎomiàn fāxiàn le shuǐ de hénjì.

Scientists discovered traces of water on the surface of Mars for the first time.