mishap

/ˈmɪsˌhæp/

an unpredictable outcome that is unfortunate

Chinese meaning: 小事故；不幸

The expedition was delayed by a minor mishap with the equipment.

探险队因设备的小事故而延误。

Despite the mishap, the team managed to complete the project on time.

尽管发生了不幸，团队还是设法按时完成了项目。