discern

她能够敏锐地辨别出哪些建议值得采纳。

She could ___discern which suggestions were worth taking.

在浓雾中，我们几乎无法辨认出前方的路标。

In the thick fog, we could hardly ___discern the road sign ahead.

老师教我们如何辨别相似汉字之间的差别。

The teacher taught us how to ___discern differences between similar Chinese characters.