我爸爸是经营汽车销售的。

Wǒ bàba shì jīngyíng qìchē xiāoshòu de.

My father operates a car sales shop.

经营一家电脑软件公司需要很多工程师。

Jīngyíng yì jiā diànnǎo ruǎnjiàn gōngsī xūyào hěn duō gōngchéngshī.

It takes many engineers to run a computer software company.

经营一门生意不容易。

Jīngyíng yì mén shēngyi bù róngyì.

Running a business is not easy.