questionable 的意思

释义：

adj. 可疑的，不可靠的；有问题的

构词：

question怀疑+able……的→adj.可疑的

例句：

Your argument is based on a set of questionable assumptions.
你的论证建立在一套有问题的假设上. 换一句

Their motives for undertaking this study are highly questionable.
他们承担这项研究的动机大有问题. 换一句

There are still a few questionable points in the case.
这个案件还有几个疑点. 换一句