doohickey
n. 窍门;小玩意;装置
复数 doohickeys或doohickies
例句
Repeat is the doohickey of the memory.
重复是记忆的窍门。
LL: Put the apple here like this. And then turn the handle of the doohickey.
把苹果放在这里,然后转动这个把手。
Now I am smoking a plastic doohickey known as "no. 9," an electronic cigarette.
我现在吸的是塑料装置的被称为9号的一种电子香烟。