stand by汉语翻译：
支持, 遵守, 袖手旁观, 准备行动
【经】 备用, 支持, 作好准备英语解释：
名词 stand by:

something that can be relied on when needed同义词：standby

an actor able to replace a regular performer when required同义词：understudy, standby

动词 stand by:

not act or do anything

be available or ready for a certain function or service同义词：stick around, stick about

be loyal to同义词：stick by, stick, adhere

形容词 stand by:

ready for emergency use同义词：standby

例句：

How can you stand by and let him treat his dog like that?他那样虐待他那只狗，你怎么能袖手旁观呢？

I'll stand by you whatever happens.无论如何，我都支持你。