顧ㄍㄨˋgù此ㄘˇcǐ失ㄕshī彼ㄅㄧˇbǐ

  1. 注意這個卻忽略了那個。指不能全面兼顧。《東周列國志·第七六回》：「彼疾雷不及掩耳，顧此失彼，二城若破，郢不守矣。」也作「顧三不顧四」、「顧一不顧二」。反面面俱到、兩全其美、一舉兩得

閩掠龜走鱉
客順得哥來逆得嫂、挖肉補瘡、撳得頭來尾又翹
英lit. to attend to one thing and lose sight of another (idiom)​, fig. to be unable to manage two or more things at once, cannot pay attention to one thing without neglecting the other