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及:到。原意是鞭子虽长,也不能打马肚子。比喻相隔太远,力量达不到。
(1) [although the whip is long,it does not reach the horse's belly——cannot do it much as one would like do] 本意为马鞭虽长,但打不到马肚子上。喻虽有力,力量亦达不到 虽鞭之长,不及马腹。——《左传·宣公十五年》 (2) 后用以喻力不能及。亦作“鞭不及腹”