Chúle jiāoqiǎngxiǎn, tā hái mǎi le shāngyè chēxiǎn.
Besides the mandatory traffic insurance, he also bought commercial auto insurance.
Tips
culture
In China, drivers are required by law to carry 交强险 (mandatory traffic liability insurance). 商业车险 is the optional commercial top-up that adds collision, theft, third-party, and other coverage — most drivers buy both.