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1. Oxford Dictionary

   base

   • IPA[beɪs]

   英式

   • n.
     the lowest part or edge of something, especially the part on which it rests or is supported；the part of a column between the shaft and pedestal or pavement.
   • v.
     use (something specified) as the foundation or starting point for something；situate at a specified place as the centre of operations

   • verb: base, 3rd person present: bases, gerund or present participle: basing, past tense: based, past participle: based

   • noun: base, plural noun: bases

2. • 釋義
   • 片語

   n.

   名詞

   • 1. the lowest part or edge of something, especially the part on which it rests or is supported she sat down at the base of a tree 同義詞 foundation, bottom, foot, support, prop, ... 更多stay, stand, pedestal, plinth, rest, bed, substructure反義詞 top
   • ▪ the part of a column between the shaft and pedestal or pavement.
   • ▪ the end at which a part or organ is attached to the trunk or main part a shoot is produced at the base of the stem
   • ▪ a line or surface on which a figure is regarded as standing the base of the triangle
   • ▪ a known line used as a geometrical base for trigonometry.
   • ▪ the lowest part of a shield.
   • 2. a conceptual structure or entity on which something draws or depends the town's economic base collapsed
   • ▪ a foundation or starting point for further work she uses existing data as the base for the study 同義詞 basis, bedrock, foundation, core, essence, ... 更多essential, nitty-gritty, basics, starting point, key component, fundamental, root(s), heart, backbone, theory, principle, rationale, source, origin, spring, well head, fountainhead, fount
   • ▪ a group of people regarded as supporting an organization, for example by buying its products a customer base
   • 3. a place used as a centre of operations by the armed forces or others; a headquarters he headed back to base 同義詞 headquarters, centre, starting point, camp, site, ... 更多station, settlement, post
   • ▪ the main place where a person works or stays she makes the studio her base your hotel is a good base from which to explore
   • 4. a main or important element or ingredient to which other things are added soaps with a vegetable oil base 同義詞 medium, vehicle, carrier
   • ▪ a substance into which a pigment is mixed to form paint, such as water, oil, or powdered aluminium hydroxide.
   • ▪ a substance used as a foundation for make-up her make-up artist works with base, eye make-up, and lipstick
   • 5. a substance capable of reacting with an acid to form a salt and water, or (more broadly) of accepting or neutralizing hydrogen ions.
   • ▪ a purine or pyrimidine group in a nucleotide or nucleic acid.
   • 6. the middle part of a bipolar transistor, separating the emitter from the collector.
   • 7. the root or stem of a word or a derivative.
   • ▪ the uninflected form of a verb.
   • 8. a number used as the basis of a numeration scale.
   • ▪ a number in terms of which other numbers are expressed as logarithms.
   • 9. each of the four stations that must be reached in turn to score a run.

   v.

   動詞

   • 1. use (something specified) as the foundation or starting point for something the film is based on a novel by Pat Conroy entitlement will be based on income 同義詞 found, build, construct, form, establish, ... 更多ground, root, use as a basis, rest, hinge, emanate from, derive from, spring from, stem from, originate in, have its origin in, can be traced back to
   • 2. situate at a specified place as the centre of operations the Science Policy Review Unit is based at the University of Sussex a London-based band 同義詞 locate, station, situate, post, position, ... 更多place, install, deploy, site, establish, garrison

   片語

   • off base
   • touch base