free climb

基本解释

Free solo:(vb. ) to free climb without any manmade protection at all.
攀登時完全不用繩索保護徒手攀登，又叫「裸攀」。
www.rock-lizard.org
Despite intense heat. I was eventually able to climb this pitch with only one fall and felt confident that it would be possible to free climb it under cooler conditions.
不顧極度的炎熱，我終於能夠爬上這個繩距，衹有一次墜落，且覺得信心滿滿能夠在涼爽的天氣完成自由攀登。
startip.blog.163.com
The 1996 expedition lasted nearly two months and culminated in a successful free-climb to the summit of the 20,469-foot (6,239-meter) granite spire's unforgiving East Face.
1996年的這次探險歷時近兩個月，探險隊最終從海拔20，469英尺（6，239米）的花崗巖山錐陡峭的東側麪成功徒手攀登上峰頂。

Far from a zero-sum game, where the successes of some come at the expense of others, free economies climb spirals of mutual gain and learning.
FORBES: The Wonders of Wealth, the Path Out of Poverty
They are free to climb.
NEWYORKER: The Disconnect