n.跟斗；顛倒
v.翻筋斗
He turned a somersault. 他翻了個筋頭。
A gymnast on the trampoline was turning somersaults. 有個體操運(yùn)動員正在蹦床上做空翻.
The child somersaulted across the gymnasium. 那孩子翻著跟頭從體育館這頭翻到那頭。
