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单词 alternate
释义 al·ter·nate
I. \ˈȯltə(r)nə̇t also ˈal-; chiefly Brit ȯlˈtərn- or ˈtə̄n- also alˈt-; usu -ə̇d.+V\ adjective
Etymology: Latin alternatus, past participle of alternare, from alternus interchangeable, alternate — more at altern
1. : occurring or succeeding by turns : one following the other in time : by turns first one and then the other
 < alternate gain and loss >
 < alternate periods of working and unemployment >
: changing back and forth by turns : reciprocating
 < alternate favors between friends >
2.
 a. : arranged first on one side and then on the other at different levels or points along an axial line : not side by side
  < stems with alternate leaves >
  < alternate pitting in cell walls >
  — see phyllotaxy; compare opposite
 b. : disposed at intervals : arranged one above or alongside the other
  < alternate stamens and petals >
  < alternate layers of brick and stone >
3. : composed of members that occur or succeed by turns
 < recurring figures in an alternate pattern >
4. : belonging to a series in which the members regularly intervene between or follow by turns the members of another series (as the odd or even members of the numerals) : every other : every second
 < the alternate members 1, 3, 5, and 7 >
 < the alternate verses of a responsive reading >
 < a maid who works on alternate days >
5. : alternative, substitute
 < this highway is an alternate route >
 < copper may be used as an alternate material >
 < make an alternate selection >
al·ter·nate·ly adverb
II. \ˈȯltə(r)ˌnāt also ˈal-; usu -ād.+V\ verb
(-ed/-ing/-s)
transitive verb
: to perform by turns or in succession : cause to perform or succeed by turns : interchange regularly
 < alternate the melodies >
 < alternate endurance tests >
 < alternate pipe and cigar >
intransitive verb
1. : to vary by turns
 < gravel and macadam alternate along the route >
: take turns
 < singers who alternate in the leading role >
— often used with between
 < the weather alternated between sunshine and storms >
 < alternate between study and writing >
2. : to happen, succeed, or act by turns : follow reciprocally — used with with
 < the flood and ebb tides alternate with each other >
Synonyms: see rotate
III. \like adj\ noun
(-s)
1. : a choice between two or among more than two objects or courses : alternative
 < the port is the alternate to New York as a shipping terminus >
 < several basic alternates to expansion of the building >
2. : one that takes the place of another : one that alternates with another: as
 a. : an extra person appointed to take the place of another who is unable to perform his duty : substitute
  < delegates to the convention and their alternates >
 b. : a person that takes his turn often at regular intervals with another of equal rank in an occupation or in performing a duty
  < appointed alternate to the chief of staff >
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更新时间:2025/3/12 21:47:25