my first is in the car my second is in the map but not in the mop my third

is in the book but not in the boot my fourth is in the bell but not in theball是什么东西

是哪四个东西 ，要在周二以前

guess~four
my first is in the car gear
my second is in the map but not in the mop world
my thirdis in the book but not in the boot knowledge
my fourth is in the bell but not in theball voice

one
c a k e

第二种可能性大吧~四个字母组成一个单词~

有点像绕口令

是一个东西吧 cake 再看看别人怎么说的。