When the spring days pass, the cherry blossoms begin to fall.

I was dumbfounded by his rude behavior.

I worked all day and ended up being tired out.

The road caved in due to the earthquake.

He fell into deep thought.

Please clean up your room right now.

He fell into a state of lethargy after the exam.

Understanding the transition state of a chemical reaction is important for predicting the progress of the reaction.

The negotiations have fallen into a deadlock.

He ended up in a vegetative state after the accident.