crumbed怎么读？

v.捏碎，弄碎（crumb的过去式与过去分词形式）...

She crumbed the bread before feeding it to the birds.她把面包弄碎,然后喂给鸟吃.The cake was frosted then crumbed to add texture.蛋糕被加上霜,然后加上碎屑以增添纹路.He crumbed the table by sweeping them to the floor.他清除了桌上的面包屑,把它们扫到了地板上....