The discovery of fossilized marine shells in desert regions underscores the dramatic shifts in Earth's climate over millions of years.
在沙漠地区发现海洋化石贝壳，强调了地球气候在数百万年间的剧烈变化。
Which choice best defines “underscore”?
A — To emphasize; stress.. “underscore” means To emphasize; stress..
Which word means “To emphasize; stress.”?
B — underscore. “underscore” means To emphasize; stress..
underscore — To emphasize; stress.. In Chinese: 强调;着重指出;在…下划线.
underscore is pronounced //ˌʌndərˈskɔːr//.
The discovery of fossilized marine shells in desert regions underscores the dramatic shifts in Earth's climate over millions of years. (在沙漠地区发现海洋化石贝壳，强调了地球气候在数百万年间的剧烈变化。)
emphasize, highlight, accentuate — all close in meaning to underscore (To emphasize; stress.).
downplay, de-emphasize — each the opposite of underscore (To emphasize; stress.).
Yes. underscore is on the SAT Prep Easy list — mid-frequency academic words that do get tested. 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.
under(下) + score(划线) → 在字下划线以示重点 → 强调。