A good spotter, well versed in these techniques, can give you the confidence to pull that dicey upside-down move, big dyno, or airy, highball topout.

• 作为一位优秀的确保者，必须精熟以上的抱石确保技巧，才能使抱石者放心地尝试冒险的头冲下、大动态、飞跃等危险动作。