隔墙有耳géqiángyǒu'ěrMeanings1. the walls have ears (idiom)Characters used隔to separate墙wall有to have耳earExamples1安德里亚，说话shuōhuà注意zhùyì点diǎn，小心xiǎoxīn隔墙有耳géqiángyǒu'ěr。Be careful what you say, Andrea; the walls have ears.