hit home idiom
使充分意识到（情况有多糟糕或困难）
to cause you to realize exactly how unpleasant or difficult something is
The full horror of the war only hit home when we started seeing the television pictures of it in our living rooms. 在家中客厅里看到电视上的图片后，我们才充分意识到这场战争有多恐怖。