卷笔刀的英文：
pencil sharpener

参考例句：

Nobody else has a pencil sharpener.
再没有谁有卷笔刀了。

Who else has a pencil sharpener?
还有谁有卷笔刀？

The boy is sharpening his pencils with a sharpener.
那男孩正在用卷笔刀削铅笔。

pencil是什么意思：
n. 铅笔，色笔，画笔
v. 用铅笔写或涂

Please sharpen this pencil.
请削一削这只铅笔。

I have but one pencil.
我只有一支铅笔。

Please issue everyone with a pencil.
请给每人发一支铅笔。

Pencils are graded according to softness.
铅笔根据硬度分类。

Nobody else has a pencil sharpener.
再没有谁有卷笔刀了。

sharpener是什么意思：
n. 卷笔刀；磨具

sharpen with a strap.
用磨刀皮带使变得尖锐。

Is this your sharpener?
这是你的磨具吗？

The boy is sharpening his pencils with a sharpener.
那男孩正在用卷笔刀削铅笔。

The training will sharpen your thinking.
培训会使你思维敏捷。

Please sharpen this pencil.
请削一削这只铅笔。