a song pops into your head 一首曲子突然蹦到你脑袋里去

　　Have you ever been waiting in line at the grocery store, innocently perusing the magazine rack,when a song pops into your head?你有没有过这样的经历，当你正在杂货店排队，漫不经心地翻着杂志，一首曲子却突然蹦到你脑袋里去？

　　a fragment of it 其中的一段其中的一段

　　Not the whole song, but a fragment of it that plays and replays

　　until you find yourself unloading the vegetables in time to the beat.

　　不是整首曲目，但是其中的一段，一而再地重奏，直到你发现自己取蔬菜的动作已然是在和着节拍。

　　be struck byan earworm 被“洗脑神曲”袭击啦

　　You've been struck by an earworm,and you're not alone.你被“洗脑神曲”袭击啦！这样的遭遇不止你有。

　　be plagued /pleɪɡd/by earworms遭受洗脑神曲的折磨

　　Over 90% of people are plagued by earworms at least once a week,and about a quarter of people experience them several times a day.超过九成的人每周至少遭受一次这样的折磨，同时大约有四分之一的人每天都有数次这样的经历。

　　get stuck in our heads 留在了我们的脑袋里

　　Scientists don't know exactly why it's so easy for tunes to get stuck in our heads.科学家们也无法完全搞清楚那些曲调为何如此轻松地就留在了我们的脑袋里。

　　listen to them recently and repeatedly 最近重复播放

　　Songs tend to get stuck when we listen to them recently and repeatedly.那些最近重复播放的歌曲更易在脑子里阴魂不散。