hone

磨练、精进、琢磨

She spent years honing her writing skills at a small newspaper.

她在一家小报社花了好几年磨练写作技巧。

磨利、磨尖

The chef honed the blade until it could slice paper.

主厨把刀磨利到可以切开纸张。

磨刀石

He kept an old hone in the drawer with his razors.

他把一块旧磨刀石和刮胡刀一起放在抽屉里。

聚焦、锁定口语

The report hones in on the causes of the housing shortage.

这份报告聚焦于住宅短缺的成因。