The young researcher earnestly recorded every observation from the telescope, knowing that even minor errors could compromise the entire data set.
这位年轻的研究员认真地记录望远镜的每一次观测，深知即使是微小的错误也可能损害整个数据集。
Which choice best defines “earnestly”?
C — In a serious and sincere way. “earnestly” means in a serious and sincere way.
Which word means “in a serious and sincere way”?
A — earnestly. “earnestly” means in a serious and sincere way.
earnestly — in a serious and sincere way. In Chinese: 认真地，诚挚地.
earnestly is pronounced /ˈɜːrnɪstli/.
The young researcher earnestly recorded every observation from the telescope, knowing that even minor errors could compromise the entire data set. (这位年轻的研究员认真地记录望远镜的每一次观测，深知即使是微小的错误也可能损害整个数据集。)
sincerely, seriously, diligently — all close in meaning to earnestly (in a serious and sincere way).
flippantly, insincerely — each the opposite of earnestly (in a serious and sincere way).
Yes. earnestly is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. 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.