He lowered his legs until he felt he had a solid foothold on the rock face beneath him.他把腿向下伸，直到感觉稳稳地踩住下方的石面。He lowered his legs until he felt he had a solid foothold on the rockface beneath him.他把腿向下伸，直到他感觉稳稳地踩住下面的石头。Apply the brakes smoothly as you approach the junction.快到交叉口时平稳地踩住刹车。