相反相成[xiāng fǎn xiāng chéng]
词典be both opposite and complementary:相反相成。
词典相反相成
词典oppose each other and yet also complement each other:相反相成。
相反相成[xiāng fǎn xiāng chéng]
be both opposite and complementary (to each other); oppose each other and yet also complement each other