somersaults

英 [ˈsʌməsɔːlts]

美 [ˈsʌmərsɔːlts]

n. 滚翻; 空翻; 筋斗
v. 做滚翻; 做空翻
somersault的第三人称单数和复数

柯林斯词典

筋斗；跟头
If someone or something does asomersault, they turn over completely in the air.
N-COUNT (态度、政策等的) 180 度转变，颠倒
If you say that someone does asomersault, you mean that they change suddenly from having a particular opinion or policy about something to having a completely different opinion or policy.
1. What worries some of us is that the Prime Minister may feel simply unable to do a somersault...
  使我们中间的一些人担心的是，首相也许觉得根本就无法做到180度的态度大转变。
2. In the last 30 years, both sexes have performed a somersault in terms of expectations, roles and relationships.
  最近 30 年里，男性和女性在个人期望、社会角色和人际关系方面都发生了 180 度的大转变。
VERB (一次或多次)翻筋斗
If someone or somethingsomersaults, they perform one or more somersaults.
1. His boat hit a wave and somersaulted at speed...
  他的船撞上了大浪，飞速地翻转着。
2. I hit him back and he somersaulted down the stairs.
  我还手打了他，他顺着楼梯滚了下去。