I have two pencils. The red one is long. The green one is short.

我有两支铅笔，红色的那只长，绿色的那只短。

youdao

I have two pencils. One is short, the other (one) is long.

我有两只铅笔，一只是长的，另外一只是短的。

youdao

I have two pencils. One is long, the other is short.

我有两支铅笔，一支长的一支短的。

youdao

I have two pencils. One is long, the other is short.

我有两支铅笔，一支长的一支短的。

youdao