我需要一把餐刀来切面包。

I need a knife to cut the bread.

请给我一把餐刀。

Please give me a knife.

这把餐刀很锋利。

This knife is very sharp.

她用餐刀抹黄油。

She spread butter with a knife.

他用餐刀切了牛排。

He used a knife to cut the steak.

他的右手里有一把餐刀。

There is a dinner knife in his right hand.

他的餐刀依然悬在半空。

His carving-knife was still poised in the air .

这把餐刀钝了!

This knife is blunt!

这把餐刀切不下去。

This knife doesn't cut.

一把小小的餐刀，这把餐刀用来切鱿鱼锋利程度刚刚好。

A small eating knife and this is just sharp enough to do the job I need it to do.