Interested bystander有利害关系旁观者图片
bystander cells旁观者细胞
bystander r旁观者
bystander response旁效应
bystander cell旁邻细胞
bystander factor旁观因子
bystander suppression旁路抑制
Quiet bystander静静的旁观者
N-COUNT（可数名词） A bystander is a person who is present when something happens and who sees it but does not take part in it. 旁观者
It looks like an innocent bystander was killed instead of you.
看样子一位无辜的旁观者当了你的替死鬼。