琢磨

I can’t fathom her out — she says one thing then does another.

我磨不透她─她说是一套，做又是一套。

I’ve been mulling over what you said last night.

我昨晚一直在磨。

The visitor can ponder over the boomerangs used by aborigines at the time of Cook.

来访者可以磨磨土著人在库克回飞镖。