■ prudent 与 prudential

两个形容词都是“审慎”的意思，但是前者用于指人或行为，后者用于指精神领域的思考、计划。

• A prudent man will try to save money for family emergencies.审慎的人会设法积蓄以备家庭不时之需。
• It is always prudent to plan a trip carefully.出门旅行事先仔细计划一番，总是审慎之举。
• Prudential considerations often cause persons to watch out for their health.审慎的考虑，常常使得人们注意自己的健康。

• continual
• continual 与 continuous
• continuous
• contrary to
• contribute
• contribute 与 contribution
• contribution
• control
• controversial
• controversial 与 contentious
• convenient
• convince
• convinced
• convince 与 persuade
• cook
• cord
• cord 与 chord
• corner
• corporate
• corps
• corps, corpse 与 corpus
• corpse
• corpus
• cost
• could