training wheels
音标发音
- 英式音标 [ˈtreɪ.nɪŋ ˌwiːlz]
- 美式音标 [ˈtreɪ.nɪŋ ˌwiːlz]
- 英式发音
- 美式发音
基本解释
- （儿童学骑自行车时安装在后轮两侧的）稳定轮。
同根派生
英英字典
- small wheels attached to each side of the back wheel of a bicycle to prevent it from falling over when a child is learning to ride it