捡了芝麻丢了西瓜

Traditional (Taiwan): 撿了芝麻丟了西瓜

jiǎnlezhīmadiūlexīguā ㄐㄧㄢˇ ˙ㄌㄜ ㄓ ˙ㄇㄚ ㄉㄧㄡ ˙ㄌㄜ ㄒㄧ ㄍㄨㄚ

    • to let go of the big prize while grabbing at trifles (idiom)

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
pick up the sesame seed, lose the watermelon
Meaning
To grab something trivial and miss the important thing, losing overall. Critical; like 'penny wise, pound foolish'.

Sources