The pencil sharpener is for my brother.(這個卷筆刀是給我兄弟的。)

Nobody else has a pencil sharpener.(再沒有誰有卷筆刀了。)

Excuse me, how much is the red pencil sharpener?(打擾一下，這個紅色的鉛筆刀多少錢？)

Here's a pencil sharpener.(這兒有一個卷筆刀。)

Who has a pencil sharpener?(誰有卷筆刀?。)

This is perhaps the coolest pencil sharpener ever to walk on its own.(這也許是最酷的卷筆刀以往自己行走。)

Where is your new pencil sharpener?(你的新卷筆刀在哪兒？)

What is the shape of this pencil sharpener?(這個卷筆刀是什么形狀的？)

Is that her pencil sharpener?(那是她的卷筆刀嗎？)

Because I borrowed her pencil sharpener.(就因為我向她借了卷筆刀。)