1580s, "that may be interrogated;" c. 1600, "open to dispute, doubtful," from question (v.) + -able. Deprecatory sense of "dubious in character" is attested from 1806. Related: Questionably.
双语例句
1. His best friend was killed by police under extremely questionable circumstances.
他最好的朋友在极其可疑的情况下被警察打死了。
来自柯林斯例句
2. It is questionable whether the expenditure on this project is really justified.
该项目的开支是否真的合理还未可知。
来自柯林斯例句
3. He has been dogged by allegations of questionable business practices.
他一直被那些指控他有不正当商业行为的说法所困扰。
来自柯林斯例句
4. It's questionable whether anything of substance has been achieved.
是否已经取得了任何实质性进展还是个问题。
来自柯林斯例句
5. The conclusions that they come to are highly questionable.