这是一支钢笔。

It's a pen.

youdao

这是一支钢笔，这是一支铅笔。

This is a pen and that is a pencil.

youdao

这是一支钢笔。那是一支铅笔。

This is a pen. That is a pencil.

youdao

这是一支钢笔，那是一支铅笔。

This is a pen and that is a pencil.

youdao

这是一支钢笔，它是绿色的。

This is a pen, It's green.

youdao

这是一支钢笔。它是莉莉的。

This is a pen. It's Lily's.

youdao

这是给你的几本书、一支钢笔和一些纸。

Here ale a few book, a pen and some paper for you.

youdao

这是一支蓝色的钢笔。

It's a blue pen.

youdao

这是什么？它是一支钢笔。

What's this? It's a pen.

youdao

这是什么？—是一支钢笔。

What's this — It's a pen.

youdao

这是一支新钢笔，我上星期买的。

This is a new pen. I bought it last week.

youdao

这是一支新钢笔，我上星期买的。

This is a new pen. I bought it last week.

youdao