支持, 遵守, 袖手旁观, 准备行动
【经】 备用, 支持, 作好准备
在线英汉词典

stand by的短语、例句：

stand by (a) be present but not do anything 袖手旁观
How can you stand by and let him treat his dog like that? 他那样虐待他那只狗, 你怎麽能袖手旁观呢? (b) be ready for action 准备行动
The troops are standing by. 部队正严阵以待. stand by sb support or help sb 支持或援助某人
I´ll stand by you whatever happens. 无论如何, 我都支持你. stand by sth be faithful to (a promise,etc) 信守（承诺等）; 遵守
She still stands by every word she said. 她仍然信守自己说的每一句话.