accuracy
/ˈækjərəsɪ; `ækjərəsɪ/ n [U] precision or exactness, esp resulting from careful effort 精确, 准确(尤指用心的结果): predict sth with great accuracy 极准确地预言某事物 * It is impossible to say with any (degree of) accuracy how many are affected. 无论如何也说不准受影响的有多少.