Grade 2 A pitch of 60-70 degree ice, reasonably consistent, with few short, steep steps. Good protection and belays.是什么意思_Grade 2 A pitch of 60-70 degree ice, reasonably consistent, with few short, steep steps. Good protection and belays.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句