1.carbohydrate n.碳水化合物，糖類(organic compound, such as sugar and starch, containing carbon, hydrogen and oxygen)

詞根記憶：carbo(碳)+hydr(水)+ate --碳水化合物

In cold-water habitats, certain invertebrates and fish convert starches into complex carbohydrates.

2.carbonate n.碳酸鹽(a saIt or ester‘of carbonic acid)

詞根記憶：來自carbon(n.碳)

例:These sediments are composed of calcium carbonate shells of marine organisms.

同根詞：carbonize(v.碳化)

3.carcass n．尸體(corpse)；（屠宰后）畜體(the dressed body of a meat animal)；（人的）身軀(the living, material, or physical body)

聯想記憶：car(汽車)+cass(看作cast投擲)一發生車禍，汽車被甩到一邊，留下尸體-（動物的）尸體

例:In Pleistocene camivore species, ofder individuals consumed carcasses as thoroughly as younger individuals did.

4.carcinogen n.致癌物(substance that produces cancer)

詞根記憶：carcino( ma)《癌）+gen（產生）一產生癌一致癌物

例:The tests indicated that the chemical was a carcinogen in laboratory-rats.

5.carcinogenic a．致癌的：致癌物的（causingicancer）

例:來自carcinogen(n.致癌物質)

例:The two insect-repelling chemicals in the secretions of the millipedes are carcinogenic for humans but do not appear to be carcinogenic for capuchins.

6.cardiac a.心臟的；心臟病白勺(relating to the heart or heart disease)

詞根記憶：cardi(心臟的)+ac一心臟的；心臟病的

例:a cardiac surgeon心臟外科醫生

7.cardiopulmonarya．心肺的；與心肺有關的(of or relating to the heart and lungs)

詞根記憶：cardio(育氧的)+pulmonary(肺部的)一肺部的有氧活動--心肺的

例:To be successful, cardiopulmonary resuscitation should begin within one to four minutes after a cardiac arrest.