doohickey是什么意思 n. 小玩意, 小装置, 窍门 n something unspecified whose name is either forgotten or not known doohickey的用法和例句: 1. I am a little confused about this doohickey. 我对这个小玩意倒是有些问题 2. So this is where our hairnet doohickey co...