flake作为动词时意为to fall off in flakes即成薄片状剥落；slice作为动词时意为to cut into slices即把.切成薄片,同时还有用刀切的意思. flake作为名词时意为a small,thin piece of something即小薄片,如soap flakes肥皂片、snowflakes雪花；slice作为名词时意为a thin flat piece cut from something即（切下的）薄片,片,如a slice of bread. 够清楚了吧?
