An unruly mob broke down police barricades and stormed the courtroom.一伙暴徒捣毁了警察设置的路障冲进法庭。Last year 600 inmates rioted, starting fires and building barricades.去年，600名犯人闹事，他们纵火并设置路障。Youths threw up barricades on the streets...
His hand shot to his mouth to stifle a giggle.他赶紧捂住嘴，不让自己笑出声来。It is best to stifle curiosity and leave birds' nests alone.最好能克制住好奇心，不要去碰鸟巢。She makes no attempt to stifle a yawn.她忍不住打了个哈欠。...