After gaining a point about halfway to the top, I was suddenly brought to a dead stop, with arms outspread, clinging close to the face of the rock, unable to move hand or foot either up or down.

在爬到山顶一半左右时， 我突然停了下来， 双臂张开，紧贴着岩石的表面， 手脚无法上下移动。