somersault /ˈsʌməˌsɔːlt/ ( somersaulting, somersaulted, somersaults )

• 1. 

  N-COUNT If someone or something does a somersault, they turn over completely in the air. 筋斗

  例：

  Trained dogs did somersaults on a man's shoulders.

  一些受过训练的狗在一个男子的肩膀上翻筋斗。

• 2. 

  V-I If someone or something somersaults, they perform one or more somersaults. 翻筋斗

  例：

  His boat hit a wave and somersaulted.

  他的船撞上了一个波浪，翻了。