collyriculum at optic nerve entrance视神经: optic nerve; nervus opticus入口: enter the mouth视神经缺损: coloboma of optic nerve视神经缺损,视神经乳头缺损: collyriculum of optic disk; collyriculum of optic nerve视神经乳头缺损: collyriculum of optic disk; collyriculum of optic nerve下载手机词典可随时随地查词查翻译