箭眼是古汉语在现今的遗存词语。古时先民在修建居所时为防止凶猛野兽的袭击，把窗子做得小些，可以在里面射箭去杀伤猛兽。
他两眼紧盯目标，用尽全力将箭射出。
He focused (使集中) his eyes on the target and shot the arrow with all of his strength.
光阴似箭！一转眼已过了一周多！
图2图1患眼的彩色眼底像。黄斑区视网膜圆形暗红色灶，轻度隆起(白箭)。
Fig. 2 Color image of ocular fundus of the eye in Fig. 1. The subretinal black-red round.
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