v. 事先规定或约定, book, subscribe

spoken pronunciation of characters, pronunciation, spoken (vs. written) pronunciation of characters, speech sounds, phonetic

n. 对小孩子进行学前教育的机构, kindergarten

adj. 形状像球的 round; n. 从中心点到周围任何一点距离都相等的图形 circle

n. 说话或做事所依据的法则或标准；总的方面、大体上, principle, criterion by which one speaks or acts

limited, finite