短语词组短语optic chiasm 视神经交叉;视交叉chiasm arm 交臂chiasm opticum 视束交叉reforming complic chiasm pedagogy 改良合并交叉教学法optic nerve -chiasm 视神经tendinous chiasm of fingers 指腱交叉Prefixed optic chiasm 视交叉前置chiasm of digits of hand 手指交叉 返回 chiasm