顾此失彼（顧此失彼）　

◎ 顾此失彼 gùcǐ-shībǐ

[take one into consideration to the neglect of the other;attend to one thing and lose sight of another] 两者不能同时兼顾

钱粮输纳,必有定限,……限有定而百姓闲时办银,逢限上纳,无顾此失彼之虑。——清· 黄六鸿《钱谷比限》