起初像是什么也没有发生，然而慢慢地，刀刃就会越来越锋利。

At first it may seem like nothing is happening, but over time the blade does get sharper and sharper.

youdao

起初像是什么也没有发生，然而慢慢地，刀刃就会越来越锋利。

At first it may seem like nothing is happening, but over time the blade does get sharper and sharper.

youdao