gadget
US
UK gadget n: (useful device)
SC 小零件 xiǎo líng jiàn
SC 小器具 xiǎo líng jiàn，xiǎo qì jù
SC 小玩意儿 xiǎo líng jiàn，xiǎo wán yì er
Rachel built a gadget that could lock and unlock her front door remotely.
瑞秋造了一个小器具可以让她远程锁上和解锁她家的前门。
gadget n: (pointless novelty)
SC 没用的新奇物件
SC 没什么用的精巧装置
Peter has a kitchen full of gadgets, but most of them don't do anything you couldn't do quicker with a knife.