这个抽屉里全是各种小玩意儿，你能帮我找到那个圆形的doohickey吗？

This drawer is full of little gadgets—can you help me find that round ___doohickey?

我找不到遥控器上那个小按钮，就是控制音量的小玩意儿。

I can't find that little ___doohickey on the remote that controls the volume.