dubious ---------- 不可靠的，可疑的（形容詞）
英文釋義
(adjective) Not likely to be true; uncertain; doubtful.
例句
When asked about the missing cookies, the boy told his mother a dubious story about seeing ghosts who live in the house.
在被問到餅干怎么沒有了時，這位男孩給了媽媽一個不靠譜的說法，他說這屋里住著幾個鬼。