basisn.
英 'beɪsɪs | 美 'besɪs
中文n. 基础；底部；主要成分；基本原则或原理
词根词源
basis (n.)1570s, "bottom or foundation (of something material)," from Latin basis "foundation," from Greek basis "a step, stand, base, that whereon one stands," from bainein "go, step" (see come). Transferred and figurative senses (of immaterial things) are from c. 1600.
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