1)top down approach,由上而下取向2)topdown approach,由上而下取向3)from top to bottom,由上而下4)blow-and-go,自由上浮5)Top Down,由上而下6)basipetal,由上往下的7)"top-down" crack,“由上而下”型裂缝8)content free grammar,自由上下文文法9)top-down models,由上至下模型10)emergency free ascent,紧急自由上升
用法和例句
In making political restructuring,China often follows two models:“from top to bottom”and “from bottom to top”.