ascertain相关的词根或词缀是: cerncertcret

第三人称单数： ascertains
过去式： ascertained
过去分词： ascertained
现在分词： ascertaining

There were favorite colors to ascertain .

由最喜欢的颜色来确定。

In galactic collisions like this the outcome can be difficult to ascertain .

像这样的两颗星系若发生碰撞，目前很难确定后果如何。

You should also ascertain early on what risk measures are used to gauge this performance .

你也必须早早确定用何种风险评估系统来衡量投资业绩。

Scientists have conducted many experiments to ascertain which animals can see in colour - and made some surprising discoveries .

科学家已经进行了大量实验来确定哪些动物在色彩方面可视，并且得出了一些令人惊讶的发现。

Results were initially inconclusive . There were just too many variables to ascertain whether cloud seeding actually weakened a hurricane .

实验的初步结果是没有结论；变量太多，难以确定播云是否削弱了飓风。