Transcript:

450 metres above a gorge near the Grand Canyon.

With no safety harness, American acrobat Nik Wallenda walks the tightrope.

Wind made the cable sway during the 22 nail-biting minutes it took him to cross.

But towards the end he felt confident enough to kneel and blow a kiss to fans waiting on the other side.

Vocabulary:

gorge n. 峡谷

safety harness 安全带；安全吊带

walks the tightrope 走钢索

nail-biting n. 束手无策；咬指甲癖

blow a kiss 飞吻