vague

The witness gave a vague description of the suspect, making the investigation difficult.

(Chinese) 证人对嫌疑人的描述很模糊，使调查变得困难。

He had only a vague idea of how to reach the remote cabin without a map.

(Chinese) 在没有地图的情况下，他对于如何到达那座偏远小屋只有一个模糊的想法。