a sententious essayist的用法和样例：
- There is a vein of melancholy in his character.
- a sententious speaker, speech, remark, book
说教式的演讲者﹑ 演说﹑ 言语﹑ 书.
- There was a long lag in forwarding mail to us.
- A bowl of hot chicken soup is good for you.
- A cloud is a mass of vapor in the sky.