One onlooker had to be restrained by police.一个旁观者遭到了警察的制止。We cannot remain a passive onlooker to the hysteric moves of the enemies.我们不能对敌人目中无人的行动坐视不理.By the time the ambulance arrived, a crowd of onlooker had gathered.救护...
An impartial onlooker must be sought out.须问旁观冷眼人.The onlooker affirmed the fact to be true.这位旁观者断言这是事实.By the time the ambulance arrived, a crowd of onlooker had gathered.救护车赶到时, 围观的人已经很多了....