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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·Detectives fade to distant bystanders.

侦探们撤出来并驱散了围观者。

6·He translated his gestures to the bystanders.

他向旁观者说明他的手势。

7·Today’s bystanders could become tomorrow’s victims.

今天的旁观者有可能就是明天的受害者。

8·He trained his camera on the unsuspecting bystanders.

他都使摄相机成为一个不介入的旁观者。

9·Dear Bystanders: You are doubtless not the only one wondering.

亲爱的旁观者：有这个疑惑的肯定不止你一人。

10·At least 37 people died in the clashes, several of them bystanders.

至少卅七人在冲突中丧生，其中包括几名旁观者。

(1)bystander effect旁观者效应