| 单词 | basis | 
| 释义 | ba·sis    (bāsĭs)n. pl.   ba·ses (-sēz′)  1.  A fact or circumstance on which something is established: rumors with no basis in reality. See Synonyms at  base1. 2.  The chief constituent; the fundamental ingredient: The basis for most liquids is water. 3.  The fundamental principle: Objective inquiry is the basis of science. 4.  a.  A pattern or schedule for proceeding: on a weekly basis. b.  A condition for relating or proceeding: a first-name basis; a friendly basis. 5.  Archaic   A physical base on which something rests. [Middle English, foundation upon which something rests, base, from Latin, from Greek, a stepping, that on which one stands, base; see  gwā- in the Appendix of Indo-European roots.]  | 
	
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