鼠目寸光

shǔ mù cùn guāng

short-sighted

Character by character

鼠shǔ
rat

目mù
eyes

寸cùn
inch

光guāng
sight

只看眼前的利益是鼠目寸光。

Only looking at short-term gain is short-sighted.

Tone: negative (criticism).

Insulting when aimed at a person; opposite of 高瞻远瞩.

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