fret

v.(使)烦恼, (使)焦急, (使)腐蚀, (使)磨损

Frenchwoman, frenetic, frenetic (also phrenetic), frenetically, frenzied, frenziedly, frenzy, frequency, frequent, frequently, fresco, fresh, fresh-, freshen, freshener, fresher, freshly, freshman, freshness, freshwater, fretful, fretfully, fretsaw, fretwork, Freudian, Freudian slip, Fri, friability, friable, friar, friary, fricassee, fricative, friction, Friday, fridge, fridge-freezer, fried, friend, friendless,