keep mum参照 mumkeepv.保持；保留；继续；贮藏；经营；遵守；供给；照管；饲养；耽搁；保持食物不变质；健康状况如何；保守（秘密@）；记录；遵守；保护n.生计；保存；城堡主楼；监狱；围墙KEEP AWAY FROM MOISTURE防潮keep the tail in waters兴隆, 走运keeping pace with times与时俱进keep pace with the time与时俱进Keep roads in repair.保持道路的维修良好。Keep sb clothed and fed使某人有衣穿有饭吃keep close about sth.对某事保密Keep sb at arm's lengthKeep the volume down.小声一点。keep-alive relaxation保活弛张