Aerial acrobatics and the attainment of spiritual tranquility may seem unlikely bedfellows.

空中杂技与心灵安稳看起来是两件完全风马牛不相及之事。

Two pilots were killed performing aerial acrobatics at the air show in Poland on Saturday when their aircraft collided head-on in front of thousands of spectators.

两名飞行员丧生演出，上周六在波兰航展特技飞行时，他们的飞机头，在成千上万的观众面前相撞。