相关单词近义词 observant 观察力敏锐的..., hawk-eyed 目光锐利的, sharp-sighted 眼光锐利的, sharp-eyed 目光敏锐的, alert 警觉的, attentive 注意的, quick 迅速的, on the ball 有准备, longsighted 眼力好的, farseeing 目光远大的, keen-sighted 目光敏锐的临近词eagle, Eagleson 返回 eagle-eyed