VOA慢速英语:Get Ready to Have Your 'Mind Blown!’

bubble – n. a very light ball of air inside a thin layer of soap

slip out – phrasal verb : to be said by mistake

stack – n. a tall chimney on a factory, ship, etc., for carrying smoke away : smokestack

fuse – n. a device that causes electricity to stop flowing when a current becomes too strong

gasket – n. a piece of rubber or some other material that is used to make a tight seal between two parts that are joined together

proportion – n. the relationship that exists between the size, number, or amount of two things

molehill – n. a small pile of dirt that is pushed up by a mole when it digs tunnels underground