「旁观者」英文怎么说

旁观者[páng guān zhě]

bystander; spectator; onlooker; looker-on; stander-by

例句：

1、一个旁观者遭到了警察的制止。

One?onlooker?had?to?be?restrained?by?police.?

2、这情景使我和每一位旁观者都很惊诧。

The?scene?was?astonishing?to?me,?to?every?one?standing?by.?

3、看起来是一个无辜的旁观者当了你的替死鬼。

It?looks?like?an?innocent?bystander?was?killed?instead?of?you.?