zhè bǎ / xīn mǎi de / chú dāo / hái / méi yǒu / kāi rèn / qiē cài / shí / hěn / fèi lì

这把新买的厨刀还没有开刃，切菜时很费力。

This newly purchased kitchen knife has not been sharpened yet, so cutting vegetables with it is quite difficult.