这支钢笔有一个金笔尖。

The fountain pen has a gold nib.

这支钢笔是我生日收到的礼物。

This pen was a gift I received for my birthday.

这支钢笔是我父亲在我生日那天送给我的，从那以后我一直珍藏着它。

The pen was given to me by my father on my birthday and I have treasured it ever since.

这支钢笔跟他丢的那支钢笔一样。

This is the same pen as he lost.

他买这支钢笔五年了。

He has had this pen for five years.

这支钢笔卖三十便士。

This pen costs thirty pence.

这支钢笔好像是我的。

It seems as if(though) this pen were mine.

这支钢笔写起来真流利。

This pen is smooth to write with.

这支钢笔是中国制造的。

This pen is made in China.

你为这支钢笔付了多少钱？

How much did you ( pay for )the pen?