The rough rock walls were like the sides of a deep canal.
粗糙的岩壁就像一条很深的运河的两岸。
On the western side, the challenge was the Niagara Escarpment, a 23-metre (75-foot) rock ridge. Canal engineer Nathan B.
在运河的西段挑战来自于尼亚加拉悬崖，那是一个高达23米的石质山脊，运河工程师Nathan B。
On the western side, the challenge was the Niagara Escarpment, a 23-metre (75-foot) rock ridge. Canal engineer Nathan B.
在运河的西段挑战来自于尼亚加拉悬崖，那是一个高达23米的石质山脊，运河工程师Nathan B。
应用推荐