■ 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。

• special
• spiritual
• splatter
• spoil
• sport
• spouse
• spray
• sprinkle
• st-
• st-
• staff
• staff 与 stuff
• stage
• stand
• start
• state
• state
• state
• statesman
• stationary
• stationary 与 stationery
• stationery
• status
• stead
• stead