hit a bird with bright pearls—the game is not worth the candle; the loss outweighs the gain
? 花這樣多外匯來建這樣的工廠，真好比～，得不償失。It is not worth spending so much foreign currency to build a factory like this.It is just like shooting a bird with bright pearls—the loss outweighs the gain.
明珠彈雀ming zhu tan que
shoot a pearl at the sparrow—the loss outweighs the gain
明珠彈雀mínɡ zhū tán què
用夜明珠作彈子去打鳥雀。比喻得不償失。pay too dear for one’s whistle, lose much to get sth. trivial