Using a high-powered microscope, researchers could discern the subtle differences between healthy and damaged cell structures.
借助高倍显微镜，研究人员能够辨别健康细胞结构与受损细胞结构之间的细微差异。
Which choice best defines “discern”?
C — To perceive or distinguish clearly.. “discern” means To perceive or distinguish clearly..
Which word means “To perceive or distinguish clearly.”?
D — discern. “discern” means To perceive or distinguish clearly..
discern — To perceive or distinguish clearly.. In Chinese: 辨别；察觉.
discern is pronounced //dɪˈsɜːn//.
Using a high-powered microscope, researchers could discern the subtle differences between healthy and damaged cell structures. (借助高倍显微镜，研究人员能够辨别健康细胞结构与受损细胞结构之间的细微差异。)
detect, distinguish, perceive — all close in meaning to discern (To perceive or distinguish clearly.).
overlook, miss — each the opposite of discern (To perceive or distinguish clearly.).
Yes. discern is on the SAT Prep Difficult list — the higher-register words that decide the hard questions. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
dis(分) + cern(筛) → 辨明。