“the meat and potatoes”的意思是关键组成部分.例句：
They stuck to the meat and potatoes of broadcasting - sports and news.
他们注重播放最关键的东西,即体育和新闻.
也有个成语是“be easy meat”,意思是众矢之的,容易的靶子.例：
The elderly living alone are an easy meat for con-men.
独居的老人是骗子最容易得手的目标.
有一个意思是“小菜一碟”的英语成语怎么说?