knife 四级高考考研

The knife is dull.

那把刀很钝。

The knife got rusty.

这把刀。

a knife with a replaceable blade.

带有可更换刀片的小刀。

whet a knife on the stone

在石头上磨刀

a knife with a sharp edge

有利刃的刀

This knife is very keen.

这把小刀非常锋利。

butcher knife scabbard

屠刀鞘

The knife easily cut into the cake.

刀一下子就切进蛋糕。

He ground the knife sharp.

他把刀磨锋利。

This knife will serve my turn.

这小刀适合我的需要。

a knife with a serrated edge

刃口呈锯齿状的刀

khaki trousers with knife-edge creases.

折缝笔挺的卡其裤。

The boat knifed through the waves.

船只破浪前进

a heavy-duty knife with sawtooth serrations.

带锯齿的厚实耐用刀。

the knife flashed in the spotlight.

在聚光灯的光束下刀子闪闪发光。

This cheap knife dulls easily.

这把便宜的刀容易变钝。

The ship knifed through the sea.

船在海上破浪前进。

sharpen one's knife for sb.

准备惩罚[攻击]某人

The knife's edge has turned.

刀变钝。