n.旁观者
His manner is that of an onlooker. 他采取一种旁观者的态度。
The onlooker affirmed the fact to be true. 这位旁观者断言这是事实。
He fell into the water, much to the entertainment of the onlookers. 他跌进水中，旁观者大乐。
By the time the ambulance had arrived, a crowd of onlookers had gathered. 救护车赶到时，围观的人已经很多了。
围观群众
