あなたは彼らの爪を切り取ったときに彼らに御treat走を与えてみるかもしれません。これにより、アクティビティをポジティブな感情に関連付けることができます。
You may try giving them a treat during and after clipping their nails. This will make them associate the activity with positive emotions, which should make them less likely to be scared of the nail clipper the next time you have to trim their nails.