yo-yo
/BrE ˈjəʊjəʊ 
, AmE ˈjoʊˌjoʊ /
A noun trademark
1 British 悠悠球 [一种玩具]
2 before n (fluctuating) 无规律的 ‹dieter›; 波动的 ‹market, inflation›
B intransitive verb informal
«person» 犹豫不决; «prices, inflation» 上下波动
yo-yo
English → Chinese
Oxford English–Chinese