exactly非常: extraordinary; unusual; spec ...对: answer; reply常对称面: common plane of symmetry; ordinary plane of symmetry常对称轴: common axis of symmetry; ordinary axis of symmetry常对角矩阵: toeplitz matrix下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:非常对,即可在微信中查询翻译