基本解释n.[医]外斜视；散开性斜视同根派生 英汉例句用作名词 (n.)We present evidence that the exotropia and face turn are part of an adaptive mechanism to increase the useful visual field.本研究所提供的证据说明外斜视和侧脸是患者为增加有效视野的一种适应性机制。