Tā duì shíwù tiāosān jiǎnsì, ràng chúshī hěn tóuténg.
She is very fussy about food, which gives the chef headaches.
Tips
memory
Picking (挑) three and selecting (拣) four — you keep sorting through everything, picking this one, rejecting that one. The numbers 三 and 四 just emphasize the repeated, excessive picking.