try to ascertain

This time he expands his remit to argue that it is not only possible to ascertain a fair value for stockmarkets but that central banks should try to do so and adjust their policies accordingly.

这一次他扩大了讨论范围，不仅确定股票市场的公允价值是可行的，而且央行应该尝试去确定，并相应调整其政策。

Letrs go to the shops and try and ascertain something good.

咱们去商店看看能不能找到好东西。

Try to put yourself in your interviewer's shoes and ascertain what he or she is looking for in a perfect candidate.

尝试着找准面试官的喜好、看他们到底需要一个怎么样的人。