面包

You use a knife to cut bread.

你用刀切面包。

He is using a knife for cutting bread.

他正用小刀切面包。

If you are having difficulty getting food onto your fork, use a small piece of bread or your knife to assist.

如果你本来打算有困难让的食物投入你的叉子，使用一小的片面包或者你的帮助的刀。

He sawed at the loaf of bread with his knife.

他用刀切开面包。不适合

He sawed at the loaf of bread with his knife .

他用刀切面包。

Then use the bread knife or glass in the middle of digging a hole in the toast.

然后用面包刀或者玻璃杯在吐司中间挖一个洞。

People cut bread with a knife.

人们用刀来切面包。

I watched it carefully, stood still with bread in one hand and knife with a scoop of butter on it in the other.

我一手里拿着面包，一手拿着涂了一勺的黄油的刀子，一动不动地站着，仔细端详着。

She cut her finger while using the bread knife.

她在使用面包刀时割伤了手指。

She was sawingthe bread with a blunt knife.

她正在用一把钝刀拉锯般地切着面包。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。