可待因

codeine;codicept(药物，用以镇痛、镇咳、催眠等)

• debt
• debug
• debunk
• debut
• debutante
• deca-
• decade
• decadence
• decadent
• Decadogue
• decamp
• decant
• decapitate
• decarbonize
• decasyllable
• decay
• decease
• deceit
• deceitful
• deceive
• decelerate
• December
• decency
• decent
• decentralize