1·Three innocent bystanders were killed in the crossfire.
三个无辜的旁观者在交叉火力中丧生。
—— 《牛津词典》
2·McMullen performed CPR while other bystanders called 911.
在其他旁观者呼叫911的同时，迈克穆兰做了心肺复苏术。
—— 《柯林斯英汉双解大词典》
3·Bystanders claim they were manhandled by security guards.
旁观者声称他们遭到了保安人员的粗暴推搡。
—— 《牛津词典》
4·Although the situation was terrible, she felt that the presence of thousands of bystanders was a kind of shelter.
此情此景虽然可怕，但她却感到这数以千计的旁观者的存在倒是一种庇护。
5·But in the confusion there were some modest signs of civic heroism, of bystanders who did not just stand by.
然而在混乱局面也有一些表现英勇的市民英雄，他们不只是站在隔岸观火的旁观者。