前后qiánhòuTop 4000Meanings1. around2. from beginning to end3. all around4. front and rearCharacters used前forward后afterExamples1你nǐ的de背心bèixīn前后qiánhòu反fǎn了le，得děi翻过来fānguòlái。You need to reverse your vest, it's back to front.