这支钢笔不好写。

This pen doesn't write well.

《新英汉大辞典》

你看，这支钢笔很不好写，不过暂时还可以用。

You see, this is a poor pen, but it will do for the nonce.

youdao

这支钢笔很好写。

This pen writes well.

youdao

这支钢笔很好写。

This pen writes well.

youdao