inexplicably

Inexplicably, the most expensive player on the team was left on the bench for the final.

(Chinese) 莫名其妙地，队里身价最高的球员在决赛中竟然被留在了替补席上。

The cat, which usually hates water, inexplicably jumped into the bathtub.

(Chinese) 那只平时讨厌水的猫竟然不可思议地跳进了浴缸。