单词	basic
释义	ba·sic (bāsĭk) adj. 1. Of, relating to, or forming a base; fundamental: "Basic changes in public opinion often occur because of shifts in concerns and priorities" (Atlantic). 2. Of, being, or serving as a starting point or basis: a basic course in Russian; a set of basic woodworking tools. 3. Chemistry a. Of or relating to a base. b. Containing a base, especially in excess of acid. c. Alkaline. 4. Geology Containing little silica, as certain igneous rocks. n. 1. An essential, fundamental element or entity: the basics of math. 2. Basic training. ba·sici·ty (-sĭsĭ-tē) n.
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