The finance team is still investigating an inexplicable drop in last month's sales figures.

財務團隊仍在調查上個月銷售數字令人費解的下滑。

Several customers complained about inexplicable charges that appeared on their monthly statements.

好幾位客戶抱怨月結單上出現了無法解釋的費用。

For some inexplicable reason, our shipment was rerouted to a warehouse in another city.

不知為何，我們的貨物被莫名其妙地改送到另一個城市的倉庫。