forthwith

详细解释:ad. 立刻, 不犹豫地, 不延迟地
【法】 必须立即执行的命令

英语解释：

副词 forthwith:

without delay or hesitation; with no time intervening同义词：immediately, instantly, straightaway, straight off, directly, now, right away, at once, in real time, like a shot