yo-yo
noun [ C ] trademark uk/ˈjəʊ.jəʊ/ us/ˈjoʊ.joʊ/ yo-yos
游游拉线盘，悠悠球（一种玩具）
a toy consisting of a circular object that can be made to go up and down a long piece of string to which it is tied
yo-yo
adjective uk/ˈjəʊ.jəʊ/ us/ˈjoʊ.joʊ/
形容摇摆不定、时常反复的事物
used to refer to something that moves up and down quickly, or something that changes repeatedly between one level and another
yo-yo dieting 间歇性节食
yo-yo
verb [ I ] uk/ˈjəʊ.jəʊ/ us/ˈjoʊ.joʊ/
上下快速移动;在不同层面间不停变化
to move up and down quickly, or to change repeatedly between one level and another
She said that her weight had yo-yoed over the years. 她说她的体重多年来一直不停摇摆变化。