■ 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。

• alike
• all
• alleged
• alligator
• allow
• all ready
• all that much
• all the more
• all together
• almost
• almost 与 nearly
• alone
• alone
• alone 与 only
• along
• already
• already
• already 与 all ready
• also
• alter
• alternative
• although
• altogether
• altogether 与 all together
• always