铁路: railway; railroad; rail从: follow这里: here开始: begin; start; initiate; comm ...有: 5年 fifteen years微微: slight; faint向上: upward; up的: 4次方是 The fourth power of 2 i ...坡度: falling gradient; slope; inc ...就从这里开始: here's how to start生活从这里开始: here is he beginning of life但是从这里开始多么完美,我的爱人: but it is such a perfect place to start, my love不足的坡度: insufficient bank道管的坡度: pipeline pitch多余的坡度: excessive bank平缓的坡度: gentle incline平坦的坡度: even pitch适当的坡度: reasonable gradient铁路从业人员: railwayman从……就开始有: date from从…开始有: date back to从开始有效: w.e.f. with effect from就开始有: date from开始有奶的: fresh开始有效: come into force / effect