scratcher造句

Like the previous chapter, "Interrogation Techniques" is a head-scratcher.

For judges of a secular bent, that may prove quite a wig-scratcher.

Two countries, both huge in technology, with somewhat opposingproblems. This became my curious head scratcher, and I wanted to learnmore.

The paraffin scratcher is also used to clean landing nipples and to fish small segments of loose wireline in a well.