1.complacency n.自滿，自得(self-satisfaction especially when accompanied by unawa-reness of actual dangers or deficiencies)

聯想記憶：com(共同，所有)+place(地方)+ncy--對自己各個地方都滿意一自滿，自得

例:They may truly have to struggle against complacency arising from their current success.

2.complainant n.控訴者(one who complains);原告（plaintiff）

詞根記憶：來自complain(v.控訴)

例:The organization acted unfairly toward the complainant in its investigation.

3.complaint n.抱怨，訴苦（expression of grief, pair' or dIssatisfaction）；疾病(a bodily ailment or disease)

詞根記憶：來自complain(v.抱怨)

例:On average,9 0ut of every l,000 passengers who traveled on Avia Airlines last year filed a complaint about our baggage-handling procedures.

4.complementv.補充(to reinforce)n.補足物(something that fills up, completes, or makes perfect)；【生】（血清中的）補體

詞根記憶：com(加強)+ple(裝滿，填滿)+ment--補充

注意：compliment(v.恭維)

例:John's work complements Larson's theory.// All of the cells in a particular plant start out with the same complement of genes.

派生詞：complementary(a.補充的)；complemented(a．有補助物的)

5.complex a．復雜的(complicated)

詞根記憶：com(一起)+ plex(重疊，多)--重疊在一起的--復雜的

例:The most effective leaders are those who can solve complex problems by finding simple, immediate solutions.

派生詞：complexity(n.復雜;復雜的事物)

6.complication n．并發癥(a secondary disease or condition developing in the course of a primary disease or condition);復雜,復雜化(complexity)

詞根記憶：來自complicate(v.使復雜化)

例:They have been used primarily by older adults, who are at risk for complications from influenza.

7.comply v.(with)遵循(to conform, submit, or adapt as required)

詞根記憶：com( -起)+pIy(用)--大家一起都要用的--遵循

例:A good citizen complies with the laws of the country.

派生詞：compliance(n.依從，順從)

8.component n.成分(ingredient)；要素(element)

詞根記憶：com(一起)+pon（放置）+ ent--放置在一起的東西一成分

例:The most effective way for managers to assign work is to divide complex tasks into their simpler component parts.

9.compose v.(of)組成(to form by putting together);使安定(to calm)

詞根記憶：com(一起)+ pose(放)--放到一起--組成

例:The stars in the Milky Way galaxy are composed of several different types of gas.

派生詞：composer(n.作家，設計者)；composition(n.組成，合成物；作文)

10.composition n.作文;作曲；構成(the manner in which sth. is composed)

詞根記憶：來自compose(v.組成，構成；作曲)

例:Geochemist John Gurney showed that garnets with this composition were formed only in the diamond-stability field.

同根詞：composite(n.復合材料；a．復合的)