单词 | ascertain |
释义 | as·cer·tain ![]() tr.v. as·cer·tained, as·cer·tain·ing, as·cer·tains 1. To discover with certainty, as through examination or experimentation. See Synonyms at discover. 2. Archaic To make certain, definite, and precise. [Middle English acertainen, to inform, from Old French acertener, ascertain- : a-, to (from Latin ad-; see AD-) + certain, certain; see CERTAIN.] as′cer·taina·ble adj. as′cer·taina·ble·ness n. as′cer·taina·bly adv. as′cer·tainment n. |
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