negligently

The fire started because someone had negligently tossed a cigarette into the dry grass.

(Chinese) 起火是因为有人大意地将烟头扔进了干草丛中。

The documents were negligently left on the public bus, exposing sensitive information.

(Chinese) 文件被疏忽地落在了公共汽车上，导致敏感信息泄露。