Idiom story I remember an idiom saying that a Song man dug a well.

Dig a well when you are thirsty ― it's too late to start.

lín kéjuéjǐng

Explain that you are thirsty before digging a well. Metaphor is not prepared in advance, just trying to find a way temporarily.

The source "Huangdi Neijing Su Wen's Four Qi Tiaoling": "Husband's disease has become a post-medicine, and chaos has become a post-treatment. It's not too late to cross a well and fight for a cone! "

Structural connection.

This usage is derogatory. Generally used as predicate and attribute.

Pronunciation mining; It can't be pronounced "qū".

Eager to distinguish shapes; Can't write "drink"; Dig; Can't write "dig".

Synonyms are unprepared and cold-blooded.

The antonym is ready, always ready.

~ discrimination with "grinding guns with cold eyes"; Metaphor is to find a way at the last minute. Sometimes it is common. But ~ emphasize "thirst"; Refers to temporary needs; "Sharpening a gun at the cold feet" emphasizes "shrinking at the cold feet"; Refers to doing things.

Example: Xiaolin doesn't study hard at ordinary times; Burning the midnight oil before the exam; This ~ method; Can you solve this problem?