1.constant a．穩定的，不變的(invariable);n．常數，恒量(a number that is assumed not to change value in a given mathematical discussion)

詞根記憶：con(始終)+stant(站，立)一始終站立一不變的

例:The cost would remain constant even if such treatments were instituted on a large scale.//In this equation, the constant equals the speed of light.

派生詞：constancy(n，恒久不變)

2.constellation n.星座，星群(named group of stars)

詞根記憶：con(共同)+stell(星星)+ation--在一起的一簇星星--星座，星群

例:The cooling-flow theory gained support when Fabian observed a cluster of galaxies in the constellation Perseus.

同根詞：stellar(a.星的，恒星的)

3.constituent n.成分;要素(component; element)；選民(a member of a constituency)

例:The amino acid is one of the sweetener's principal constituents.

派生詞：constituency(n.選民；支持者)

4.constitute v.組成，建立(to set up, establish)；制定(to enact)

詞根記憶：con+stitute(建立，放)--建立，組成

例:What constitutes an American Indian rese~ation is a question of practice, not of legal definition.

派生詞：constitution(n.憲法；構造)

5.constraint n.約束，抑制(restraint, limitation)

詞根記憶：con(共同)+straint(拉緊)--拉緊到一起--約束

例:Western women were free from the constraints binding their eastern sisters.

6. constrict v.收縮；使狹窄(to make narrow or draw together)

例:When the seal dives below the surface of the water and stops breathing, arteries become constnbted.

派生詞：constriction(n.壓縮，收縮)；constrictive(a．壓縮性的)

7.construct v.建筑，建造(to build)；構成(to make or form by combining or arranging parts or elements)

詞根記憶：con(加強)+struct(建造)--建造

例:Male bowerbirds construct elaborately decorated nests, or bowers.

派生詞：construction(n.建設;建筑物;結構)

同根詞：restructure(v.調整;重建)

8.construction n．建筑，建筑物(the process, art, or manner of constructing sth.)；結構．

句法關系(syntactical arrangement)

詞根記憶：con(共同)+struct(建造)+ion--共同建立--建筑

例:The construction of the cable car terminal at Machu Picchu will require the use of potentially damaging heavy machinery at the site.

同根詞：destruction(n.破壞，毀滅)

9.constructivism n.結構主義，構成派(an art movement concerned with formal organization of planes and expression of volume in terms of modern industrial materials)

詞根記憶：con(共同)+struct(建造)+iv+ism(主義)--結構主義

例:The modernization gave credence to the view of advocates of social constructivism.

同根詞：construction(n．建筑)

10.constructivist n.構成主義者(an artist of the school of constructivism)

詞根記憶：來自construct(v.構造，建造)

例:Clark refutes the extremes of the cortstructwists by both theoretical and empirical argument's.

同根詞：constructivism(n.構成主義;構成派)