常见例句双语例句Although there is a prominent curving couloir skirting the buttress on the left, the Russians chose to tackle a direct and far more difficult line up the center.虽然这里有一个突起的冰雪沟槽从左边连接着拱壁，俄罗斯人选择对付这条直上更难的路线直达拱壁。 返回 couloir