最下一级 meaning in English

the bottom rung
the bottom ste

Ah ! said rastoptchin , hurriedly turning his eyes away from the young man in the fox - lined coat and pointing to the bottom steps
拉斯托普钦说，急忙从穿狐皮袄的年轻人身上移开目光，指着门廊的最下一级台阶。
1 considering all projects or components of components of the whole basin as a unit or several suitable units to assess the whole environmental impacts on the upper part ( above the lowest cascade ) of the basin
把方案中的各种工程作为一个大单元或分成几个组成单元，评价各方案对最下一级工程以上地区各种环境因子及地区(流域)的总体影响。