Qiāngxiè shàng ānzhuāng le xiāoshēngqì, shèjī shēng jīhū tīng bùdào.
A silencer was fitted to the firearm, and the shot was barely audible.
Tips
memory
消 (to eliminate) + 声 (sound) + 器 (device) = the device that eliminates sound. The same pattern works for 消毒器 (disinfector) and many other compound nouns ending in 器.
