Teacher, what is this word? Thank you.

This is a formal script. The signature (see the picture below) is very clear.

This is Su Shi's "Looking at the South of the Yangtze River and Surpassing Taiwan Province". The exact words are as follows

Spring is not old, the wind is fine and the willows are oblique. Try to look up from the detached platform, one river is half full of flowers, and the misty rain is dark.

After a cold meal, I woke up but felt uncomfortable. Don't miss the old country for the old friend, try new tea with new fire. Poetry and wine use time.