pretend to obey orders ⇒ 他阳奉阴违，最后被免了职。 Tā yáng fèng yīn wéi, zuìhòu bèi miǎnle zhí. → He pretended to obey orders without actually executing them, and in the end he was dismissed.
阴错阳差
unexpected mishap
阴阳怪气
odd ⇒ 他说话老是阴阳怪气的，让人听着别扭。 Tā shuōhuà lǎoshì yīn yáng guài qì de, ràng rén tīngzhe bièniu. → He has such an odd way of speaking that it's irritating to listen to him.