(1) I seen they done rude stuff like when the MRT door just about to shut they put they (应该是their) arm (arms) in
(2) I seen they done rude stuff like when the MRT door just about to shut they put they arm in and delay the whole MRT.
这个也见过singaporean也是这么做啊, 那次看到一群学生就是门关了他们就用手阻止那个门关然后冲进来结果那个mrt的门都关不上了,他们又用手给推上去的 (我当时只是觉得他们挺强的)