discern

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.

即使在黑暗中，她也能辨别出远处的轮廓。

Even in the dark, she could ___discern the outline in the distance.

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.