马戏团演员在人群上方高空的秋千上表演了一个惊险的后空翻。

The circus performer did a daring somersault on the ___trapeze high above the crowd.

马戏团的演员们在空中荡秋千时抓住了空中飞人吊架。

The circus performers caught the ___trapeze while swinging through the air.