●ˌprey on sb’s ˈmind ( ˌplay on sb’s ˈmind) worry or trouble sb very much萦绕心头；使困扰；使耿耿于怀◆The death of his father is really preying on his mind at the moment. He thinks it was his fault.眼下，父亲的去世成为他的一块心病，他认为那是自己的过错。◆The question of whether to accept the new job and move to Scotland had been playing on his mind for days.是否接受新工作并搬到苏格兰去，数天来这个问题在他心头萦绕不去。