The crowd had to stand behind barriers.
人群只好站在障碍物后面。
英语解释：an object like a fence that prevents people from moving forward from one place to another 屏障；障碍物:
,
The crowd had to stand behind barriers.
人群只好站在障碍物后面。
英语解释：an object like a fence that prevents people from moving forward from one place to another 屏障；障碍物:
,
