twenty-four seven = 24 hours a day, 7 days a week = all the time 永遠，一直
go for a song = be sold very cheaply 賤賣
bucket down = rain very heavily 瓢潑大雨
backroom boys 幕后英雄
pull one’ s leg = tease someone 開某人玩笑
break one’ s back 辛勤工作
below the mark = not measure up 不夠水平，不合格
beyond compare 的，最棒的
break even 不賠不賺
by the book 照章辦事
cast a cloud over 潑冷水，是蒙上陰影
go for a song = be sold very cheaply 賤賣
bucket down = rain very heavily 瓢潑大雨
backroom boys 幕后英雄
pull one’ s leg = tease someone 開某人玩笑
break one’ s back 辛勤工作
below the mark = not measure up 不夠水平，不合格
beyond compare 的，最棒的
break even 不賠不賺
by the book 照章辦事
cast a cloud over 潑冷水，是蒙上陰影