accessory

他被指控为这起谋杀的从犯。

He was charged as an ___accessory to the murder.

这款手机壳是搭配智能手机的时尚配饰。

This phone case is a stylish ___accessory for smartphones.

这款耳机是手机的最佳配件。

These earphones are the perfect ___accessory for your smartphone.