He was charged with being an accessory to murder.

他被控为谋杀罪的从犯。

《牛津词典》

She had been charged with being an accessory to the embezzlement of funds from a cooperative farm.

她已被指控为挪用一个合作农场资金的一个从犯。

《柯林斯英汉双解大词典》

He is an accessory to the murderer.

他是这个杀人凶手的同谋。

youdao

DarbeeVision will introduce their new Cobalt accessory to the consumer electronics community at the 2013 CES show in Las Vegas.

ENGADGET: DarbeeVision announces Cobalt video processor set to enhance any consumer's content

You'll also notice that it's the first Wii U accessory to be colored in black, rather the white we've become accustomed to.

ENGADGET: Nintendo teases Wii U Pro Controller, black Wii U hardware (update: video)

Gottheil also predicts a case-keyboard accessory to release alongside the smaller iPad saying that it would be an important accessory for students.

FORBES: Will We See An iPad 3 Mini In 2012?