call sb out
(a) summon sb, esp to an emergency 召唤某人(尤指处理紧急事件)
call out the fire brigade, troops, guard, etc 召(集)消防队、 部队、 守卫人员等.
(b) order or advise (workers) to go on strike 命令或建议(工人)罢工
Miners were called out (on strike) by union leaders. 矿工遵照工会领袖的指示举行罢工.