假梗阻 (pseudo-obstruction 的复数) approach to obstructions: 近障碍物线flow obstructions: 水流堵塞four obstructions: 四塞ideological obstructions: 思想障碍the five obstructions: 五道电影难题; 五道障碍; 五种障碍下载手机词典可随时随地查词查翻译
