(literary) a small gain or a single good idea; often used as a modest way to refer to one's own insight or achievement. See 千虑一得 qiān​lǜ​yī​dé

Connects a describing word or phrase to the noun it describes, similar to 的 de but used in formal or literary writing.

(literary) a modest way to refer to oneself, meaning "I" or "my"