yo-yoBrE/ˈjəʊ jəʊ/NAmE/ˈjoʊ joʊ/verbpresent simple - I / you / we / theyyo-yoBrE/ˈjəʊ jəʊ/NAmE/ˈjoʊ joʊ/present simple - he / she / ityo-yosBrE/ˈjəʊ jəʊz/NAmE/ˈjoʊ joʊz/past simpleyo-yoedBrE/ˈjəʊ jəʊd/NAmE/ˈjoʊ joʊd/past participleyo-yoedBrE/ˈjəʊ jəʊd/NAmE/ˈjoʊ joʊd/ -ing formyo-yoingBrE/ˈjəʊ jəʊɪŋ/NAmE/ˈjoʊ joʊɪŋ/[I](+ adv./prep.)tochangerepeatedlyinsize, amount, quality, etc. fromoneextremetoanother上下跳动;左右摇摆◆WhenIwasyoungmyweightyo-yoedbetween140and190pounds. 我年轻时体重在 140 到 190 磅之间忽上忽下。
yo-yoBrE/ˈjəʊ jəʊ/NAmE/ˈjoʊ joʊ/adjective[only before noun]changingrepeatedlyinsize, amount, quality, etc. fromoneextremetoanother上下跳动的;左右摇摆的◆Sheworriesaboutherpatternofyo-yodieting. 节食后体重反弹,再节食再反弹,她对这种模式很担心。