lingering

After the fire, there was a lingering smell of smoke in the room.

用法提示：lingering 是形容词，修饰气味，表示持续存在、难以消散。

She still has a lingering cough from the cold she caught last month.

用法提示：lingering 作形容词修饰咳嗽，指症状拖延未愈。

The team felt a lingering disappointment after losing the championship game.

用法提示：lingering 为形容词，形容失望的情绪长时间留在心中。